* Articles Editor, 1999-2000, BOSTON COLLEGE ENVIRONMENTAL AFFAIRS LAW REVIEW. 1See Personal Watercraft Use Within the NPS System, 63 Fed. Reg. 49,312, 49,313 (1998) (to be codified at 36 C.F.R. pts. 1 & 3) (proposed Sept. 15, 1998). 2See Jack Sullivan, Commotion on the Ocean, Lakes and Rivers Jet Skiers Are Making Waves,Boston Herald, Aug. 2, 1998, at 19. 3See Lindsey Kate Shaw, Comment, Land Use Planning at the National Parks: Canyonlands National Park and Off-Road Vehicles, 68 U. Colo. L. Rev. 795, 795 & n.5 (1997) (comparing 37 million visitors in 1950 to 52 million visitors in 1990, and estimating 500 million visitors in 2010). 4See, e.g., 63 Fed. Reg. at 49,31449,315; John Carey, Those #!*! Jet Skis Roar up the Potomac,Bus. Wk., Sept. 14, 1998, at 56. 5See 63 Fed. Reg. at 49,314. 6See 16 U.S.C. � 1 (1994); 63 Fed. Reg. at 49,314. 7See 63 Fed. Reg. at 49,31349,314. 8See id. at 49,313. 9See id. An additional twelve units will be able to use the locally-based procedures for two years after the proposed rule is finalized. See id. The thirteen units discussed in the text are allowed to continue PWC use for two years following final rule publication. See id. 10See, e.g., Susan Sward & Jim Doyle, Jet Ski Ban Sought for Golden Gate Rec Area; Ocean Environmentalists in S.F. Delighted by Plan,S.F. Chronicle, Oct. 16, 1998, at A22; Garvey Winegar, National Park Service May Put Jet Skiers in Deep Water,Richmond Times Dispatch, Sept. 23, 1998, at E-3; John Donaldson, Personal Watercraft Industry Association, National Park Service Has Gone Too Far (visited Jan. 2, 1999) <http:www.pwia.org/Hot_NPS.-htm#anchor1458443> [hereinafter National Park Service Has Gone Too Far]. 11See Chip Davis, National Park Service, Personal Watercraft Use to Be Regulated in the Parks (visited Sept. 29, 1999) <http://www.aqd.nps.gov/pubs/yir/yir98/chapter01/-chapter01pg3.html>. 12See National Park Service, Designation of National Park System Units (visited Jan. 2, 1999) <http://www.nps.gov/legacy/nomenclature.html> [hereinafter Designation]. There are numerous designations within the National Park System, many of which describe the use and/or purpose of a particular unit. Seeid. For example, a national park usually refers to large natural places having a wide variety of attributes, including historic assets, while a national recreation area may emphasize water-based recreation or function as an urban park that combines scarce open spaces with the preservation of significant historic resources to provide outdoor recreation for large numbers of people. See id. 13See Robin W. Winks, The National Park Service Act of 1916: A Contradictory Mandate?, 74 Denv. U.L. Rev. 575, 57576 (1997). 14 16 U.S.C. � 1 (1994). Prior to the successful passage of the Organic Act in 1916, Congress struggled for six years to establish some type of bureau to efficiently administer the eleven national parks then in existence and to enable the American public to experience their natural wonders. See Winks, supra note 13, at 58587. The preamble cited in the text (written by landscape architect Frederick Law Olmsted, Jr.) and the remaining two and a half pages of the Organic Act were the result of the 64th Congresss decision to sketch the System in very general terms. See id. at 59596. This approach avoided previous pitfalls of failed national park legislation, such as disagreements about whether a fee should be charged to Americans entering units in automobiles. See id. at 595. 15SeeRichard West Sellars, Preserving Nature in the National Parks: A History 910 (1997). 16See id. 17See Winks, supra note 13, at 596. 18See id. at 58587 (quoting President William Howard Tafts 1912 comments on the importance of national parks). 19See Ann E. Lane, Scenic Air Tours Over Our National Parks: Exploitation of Our National Resources or Environmental Solution?, 62 J. Air L. & Com. 523, 526 (1996). 20Seeid. 21See 16 U.S.C. � 3 (1994). 22Id. � 1a-2(h). 23See Shaw, supra note 3, at 800. 24See id. 25See Winks, supra note 13, at 577. 26See 16 U.S.C. � 1a-1. 27Id. 28See id. � 1c. 29Seeid. 30SeeH.R. Rep. No. 911265 (1970), reprinted in 1970 U.S.C.C.A.N. 3785, 3785. 31See id. at 378587. 32See id. 33See, e.g., Michigan United Conservation Clubs v. Lujan, 949 F.2d 202, 20405 (6th Cir. 1991) (noting that NPS was rethinking categorical management policies in light of 1970 amendments); Michael A. Mantell & Philip C. Metzger, Managing National Park System Resources: A Handbook on Legal Duties, Opportunities, and Tools 1314 (Michael A. Mantell ed., 1990). The 1970 congressional amendments eventually led NPS to discontinue its categorical management policies and to conclude that the System should be administered as an integrated whole unless provided otherwise by a System units enabling legislation. SeeMantell & Metzger, supra, at 1314. 34See 16 U.S.C. � 1a-1 (1994). 35Id. 36Id. 37SeeH.R. Rep. No. 95581, pt. 1, at 21 (1977) reprinted in 1978 U.S.C.C.A.N. 463, 467. 38Seeid. 39 Sierra Club v. Andrus, 487 F. Supp. 443, 448 (D.D.C. 1980) (quoting S. Rep. No. 95528 (1977)). 40SeeH.R. Rep. No. 95581, at 33. 41See id. 42See, e.g., Mantell & Metzger, supra note 33, at 15; Winks, supra note 13, at 57879. 43SeeMantell & Metzger, supra note 33, at 16; Criteria for Parklands (visited Jan. 3, 1999) <http://www.nps.gov/legacy/criteria.html> [hereinafter Criteria for Parklands]. 44SeeMantell & Metzger, supra note 33, at 16; Criteria for Parklands,supra note 43. 45SeeMantell & Metzger, supra note 33, at 16; Criteria for Parklands,supra note 43. 46SeeMantell & Metzger, supra note 33, at 16; Criteria for Parklands,supra note 43. 47See 16 U.S.C. �� 1a-1, 1c (1994). 48Seeid. 49See id. � 459d. 50See id. �� 459d, d-1, d-4. 51Id. � 459d-4. 52See 16 U.S.C. �� 459d to 459d-7. 53See id. � 460t. 54See id. 55See id. � 460t-1(c). 56See id. � 460fff(a). 57See 16 U.S.C. �� 459d-4, 460fff-1(a). 58See id. � 460fff-1(a). 59See id. � 460fff-1(d)(1). 60See id. � 3 (providing that the Secretary of the Interior shall make and publish such rules and regulations as he may deem necessary or proper for the use and management of the parks, monuments, and reservations under the jurisdiction of the National Park Service.); Bicycle Trails Council v. Babbitt, 82 F.3d 1445, 1451 (9th Cir. 1996). 61See 5 U.S.C. � 706(2)(A) (1994). Since the Organic Act does not provide for or prohibit judicial review, the Administrative Procedure Act governs standards of reviewability. See id. 62See Bicycle Trails Council, 82 F.3d at 1451. 63See id. (quoting Chevron, U.S.A., Inc. v. Natural Resources Defense Council, Inc., 467 U.S. 837, 84243 (1984)); National Rifle Assn v. Potter, 628 F. Supp. 903 (D.D.C. 1986). 64See Southern Utah Wilderness Alliance v. Dabney, 7 F. Supp. 2d 1205, 1211 (D. Utah 1998) (quoting Chevron, 467 U.S. at 84243 (1984)). 65See id. 66See id. 67See Bicycle Trails Council, 82 F.3d at 1452. 68Seeid. at 145354. The challenged regulation read, in part: use of a bicycle is prohibited. . . . Routes may only be designated for bicycle use based on a written determination that such use is consistent with the protection of the park areas natural, scenic and aesthetic values, safety considerations and management objectives and will not disturb wildlife or park resources. 36 C.F.R. � 4.30 (1998). 69See National Rifle Assn v. Potter, 628 F. Supp. 903, 911 (D.D.C. 1986). 70SeeBicycle Trails Council, 82 F.3d at 145254 (reasoning the Organic Act and the 1970 and 1978 amendments clearly intended that NPS manage all System areas uniformly with the fundamental goal as resource protection, or, alternatively, even if Congress was ambiguous about off-road bicycling, reasonable statutory interpretation permitted a prohibition); Potter, 628 F. Supp. at 90910 (citing Congresss failure to explicitly allow hunting and trapping in the Organic Act, but stating that if particular System unit enabling legislation expressly authorized it, NPS could permissibly interpret the Organic Act as prohibiting hunting and trapping generally). 71See, e.g., Bicycle Trails Council, 82 F.3d at 1452; Potter, 628 F. Supp. at 90910; Southern Utah Wilderness Alliance v. Dabney, 7 F. Supp. 2d 1205, 1211 (D. Utah 1998). 72See, e.g., Bicycle Trails Council, 82 F.3d at 1452; Potter, 628 F. Supp. at 90910. 73See, e.g., Bicycle Trails Council, 82 F.3d at 145253 (citing language and legislative history of 1970 and 1978 amendments to reason safeguarding the integrity and resource values of the System is NPS overarching management concern); Potter, 628 F. Supp. at 90910 (highlighting Organic Acts referencing a single purpose¾conservation¾in support of general ban on hunting and trapping). 74See, e.g., Bicycle Trails Council, 82 F.3d at 145253; Potter, 628 F. Supp. at 90910. 75See, e.g., Wilderness Pub. Rights Fund v. Kleppe, 608 F.2d 1250, 1254 (9th Cir. 1979); Southern Utah Wilderness Alliance, 7 F. Supp. 2d at 121112. 76SeeKleppe, 608 F.2d at 1254 (stating that where several administrative solutions exist for a problem, courts will uphold any one with a rational basis); Southern Utah Wilderness Alliance, 7 F. Supp. 2d at 1211 (stating that any reasonable accommodation of conflicting mandates is permissible). 77See Southern Utah Wilderness Alliance, 7 F. Supp. 2d at 1211. 78See Voyageurs Region Natl Park Assn v. Lujan`, 966 F.2d 424, 427 (8th Cir. 1992) (finding snowmobile use within a corridor of a national park acceptable because of evidence that snowmobiling would not permanently change area); Southern Utah Wilderness Alliance, 7 F. Supp. 2d at 121112 (allowing off-road vehicles in part of System units where unique resources would not be severely or permanently impaired). 79SeeVoyageurs Region Natl Park Assn, 966 F.2d at 427; Southern Utah Wilderness Alliance, 7 F. Supp. 2d at 121112. 80See Mausolf v. Babbitt, 125 F.3d 661, 66970 (8th Cir. 1997); Bicycle Trails Council v. Babbitt, 82 F.3d 1445, 145556 (9th Cir. 1996). 81See Mausolf, 125 F.3d at 669 (quoting Motor Vehicle Mfrs. Assn v. State Farm Mut. Auto. Ins. Co., 463 U.S. 29, 43 (1983)). 82See id. 83See id. at 66970; Bicycle Trails Council, 82 F.3d at 145556. 84See Mausolf, 125 F.3d at 66970. 85See Bicycle Trails Council, 82 F.3d at 1456; infra notes 14850 and accompanying text (discussing adequacy of the National Oceanic and Atmospheric Administrations concise and general statement explaining its PWC ban in a marine sanctuary). 86See 16 U.S.C. � 1a-1 (1994). 87Id. 88See, e.g., Michigan United Conservation Clubs v. Lujan, 949 F.2d 202, 20607 (6th Cir. 1991); Bicycle Trails Council, 82 F.3d at 146061; National Rifle Assn v. Potter, 628 F. Supp. 903, 91112 (D.D.C. 1986). 89See Michigan United Conservation Clubs, 949 F.2d at 20708. 90See id. 91See id. at 208. 92See 949 F.2d at 20304. Trapping, like hunting, is prohibited generally in all units of the National Park System. See 36 C.F.R. � 2.2(b) (1998). In this case, the court relied on National Rifle Assn v. Potter, a case cited throughout this Comment, to deny that trapping is a subset of hunting, reasoning that because Congress has generally provided for trapping explicitly, an omission in other statutes must be presumed to be intentional. SeeMichigan United Conservation Clubs, 949 F.2d at 20708. 93See Bicycle Trails Council, 82 F.3d at 1461 (citing language of unit enabling legislation to reach conclusion). 94See id. 95See id. 96Seeid. 97See id. at 145758. 98SeeBicycle Trails Council, 82 F.3d at 145961. 99See id. at 1461. 100See id. 101See Shaw, supra note 3, at 800. There is some controversy over whether the NPS Management Policies have the force of law. Seeid. (noting cases in which the court has appeared to decide both ways). None of the cases surveyed for this Comment explicitly address this issue, but several of them do cite NPS Management Policies. See, e.g., Michigan United Conservation Clubs v. Lujan, 949 F.2d 202, 20405 (6th Cir. 1991). 102See National Park Service, NPS Management Policies: Introduction (visited Jan. 1, 1999) <http://www.nps.gov/planning/mngmtplc/npsmpint.html> [hereinafter NPS Management Policies: Introduction]. 103See id. 104See id. 105See id. 106See National Park Service, NPS Management Policies: Visitor Use (visited Jan. 1, 1999) <http://www.nps.gov/planning/mngmtplc/upvu.html> [hereinafter NPS Management Policies: Visitor Use]. 107See id. 108See id. 109SeeThe Personal Watercraft Story (visited Jan. 2, 1999) <http://www.pwia.org-/Abo_PWC.htm> [hereinafter Personal Watercraft Story]. There are five companies active in the PWC market: Kawasaki, Yamaha, Bombardier Recreational Products, Arctic Cat, and Polaris. See id. Arctic Cat and Polaris are also known as giants in the snowmobiling industry. See id. 110See id. 111See id. 112See Elliott Almond, Making Waves,Seattle Times, July 23, 1998, at C1; Personal Watercraft Story,supra note 109. 113SeePersonal Watercraft Story,supra note 109. 114See id. 115See id. 116SeeNational Transp. Safety Bd., NTSB/SS-98/01, Personal Watercraft Safety V (1998). In 1993, there were twenty-six PWC fatalities, and in 1997 there were eighty-three PWC fatalities. See id. 117See id. 118See Almond, supra note 112. 119SeeNational Parks & Conservation Assn, Ban Sought on Jet Skis in National Parks (May 19, 1998); David Brauer, Water Scooters Creating a Legal Splash,Chi. Trib., May 26, 1998, at 6; Winegar, supra note 10. 120See David Holmstrom, Water Motorcycles Catch Negative Spray; Industry Looks for Way to Resolve Environmentalists Concerns about Pollution, Noise, and Habitat Disruption,Christian Sci. Monitor, May 20, 1998, at 14. 121See Terry Tomalin, Personal Watercraft: The Great Outdoors,St. Petersburg Times, June 20, 1998, at 7. 122See id. The Personal Watercraft Industry Association disputes and downplays possible damage to seagrasses, marine mammals, fish, and other aquatic life. SeePWIA: Environmental Protection (visited Jan. 2, 1999) <http://www.pwia.org/Env_PWC.htm>. The Association maintains that PWC will lose power if operated in areas containing vegetation and sediment, as these materials will be drawn into the jet pumps powering the vessels. See id. 123See 46 C.F.R. � 24.1017 (1997). 124See id. at �� 24.1017, 25.25, 25.30. 125 16 U.S.C. � 1a-2 (h) (1994). 126SeeH.R. Rep. No. 941569, 13 (1976), reprinted in 1976 U.S.C.C.A.N. 4290, 429899. 127See id. at 24. 128SeeNational Park Serv., U.S. Dept of the Interior,National Park Service Announces Proposed Rule for Personal Watercraft Use in Parks (Sept. 15, 1998). PWC have been banned at the following units: Yellowstone National Park, Canyonlands National Park, Everglades National Park, Glacier National Park, Ozark National Scenic Riverways, and Golden Gate National Recreation Area. See id.; U.S. Dept of the Interior, The Golden Gate National Recreation Area to Prohibit Use of Jet Skis (Personal Watercraft) in Park Waters Effective November 1 (Oct. 28, 1998). 129See Everglades National Park Special Regulations, 59 Fed. Reg. 58,781, 58,782 (1994). The ban was promulgated under 36 C.F.R. section 1.5, which authorizes closures and public use limits based on a determination that action is necessary for the maintenance of public health and safety, protection of environmental or scenic values, protection of natural or cultural resources, . . . [or] implementation of management responsibilities. See 36 C.F.R. � 1.5 (1998). 130Seeid. 131See National Park Service, Appendix A: Administrative Record Detailing the NPS Decision to Ban the Use of Personal Watercraft on Lake Crescent Olympic National Park, Washington (visited Jan. 1, 1999) <http://www.nps.gov/htdocs4/olym/lceis/lca.html> [hereinafter NPS Appendix A]. 132See id. 133See id. 134Id. 135See id. 136See NPS Appendix A,supra note 131. 137See id. 138See 48 F.3d 540 (D.C. Cir. 1995). 139Seeid. at 54142. 140See id. at 542. 141See id. 142See id. at 544. 143See Personal Watercraft Indus. Assn, 48 F.3d at 54446. 144Seeid. at 545 (noting the disturbance to sea otters, harbor seals, and the Sanctuarys kelp forests caused by PWC.) 145See id. 146See id. 147See id. 148See Personal Watercraft Indus. Assn, 48 F.3d at 545. 149See 5 U.S.C. � 553(c) (1994); Personal Watercraft Indus. Assn, 48 F.3d at 545. 150See 5 U.S.C. � 553(c); Personal Watercraft Indus. Assn, 48 F.3d at 545. 151See Personal Watercraft Use Within the NPS System, 63 Fed. Reg. 49,312, 49,314 (1998) (to be codified at 36 C.F.R. pts. 1 & 3) (proposed Sept. 15, 1998). 152See id. 153See, e.g., Sward & Doyle, supra note 10 (citing San Francisco Board of Supervisors-imposed ban on jet skis within 1200 feet of the citys shoreline). Increased PWC regulation on state and local levels has resulted in a number of lawsuits questioning the regulatory scope of states, counties, and/or cities in the PWC context. See generally Buckley v. City of Redding, 66 F.3d 188 (9th Cir. 1995); Kaneohe Bay Cruises, Inc. v. Hirata, 861 P.2d 1 (Haw. 1993). 154See 63 Fed. Reg. at 49,316. 155Id. 156See id. 157See id. at 49,316. 158See id. The thirteen units are: Amistad, Bighorn Canyon, Chickasaw, Curecanti, Gateway, Glen Canyon, Golden Gate, Lake Mead, Lake Meredith, Lake Roosevelt, Whiskeytown-Shasta-Trinity National Recreation Areas, and Gulf Islands and Padre Islands National Seashores. See id. 159See 63 Fed. Reg. at 49,316. 160See id. The additional twelve areas are: Assateague Island, Cape Canaveral, Cape Cod, Cape Hatteras, Cape Lookout, Cumberland Island, and Fire Island National Seashores; Indiana Dunes, Pictured Rocks, and Sleeping Bear Dunes National Lakeshores; and Delaware Water Gap and Chattahoochee River National Recreation Areas. See id. 161See id. at 49,316. 162See id. at 49,312. 163Seeid. at 49,313. 164See 63 Fed. Reg. at 49,314. 165See id. 166See id. 167See id. 168See id. at 49,31449,315. 169See 63 Fed. Reg. at 49,31449,315. 170See id. at 49,315. 171See id. at 49,313. 172See id. 173Id. (quoting 36 C.F.R. � 1.5(a) (1998)). 174See 63 Fed. Reg. At 49,313 (quoting 36 C.F.R. �� 1.5(b),(e), 1.7 (1998)). 175See 36 C.F.R. �1.5(c) (1998). 176See id. at � 1.7(a)(1)-(4). 177See 63 Fed. Reg. at 49,313. A rulemaking through the Federal Register requires nationwide notice and an opportunity to comment on any proposal to authorize PWC use in a unit of the National Park System. See id. 178See id. 179Seeid. 180See id. 181See id. 182See Personal Watercraft Industry Association, PWIA Fact Sheet, (visited Jan. 2, 1999) <http://www.pwia.org/Abo_Fact.htm>. 183SeeNational Park Service Has Gone Too Far,supra note 10. 184See id. 185See id. 186See id. 187See id. 188SeeNational Park Service Has Gone Too Far,supra note 10. 189See id. 190See id. 191See id. 192See id. 193SeeNational Park Service Has Gone Too Far,supra note 10. 194See generally Bicycle Trails Council v. Babbitt, 82 F.3d 1445 (9th Cir. 1996); National Rifle Assn v. Potter, 628 F. Supp. 903 (D.D.C. 1986). 195See, e.g., supra notes 12837 and accompanying text. 196See 16 U.S.C. � 1a-1 (1994); Bicycle Trails Council, 82 F.3d at 145154; H.R. Rep. No. 911265 (1970), reprinted in 1970 U.S.C.C.A.N. 3785, 3785. 197 16 U.S.C. �� 1a-1, 3. 198SeeH.R. Rep. No. 911265 at 378586. 199See,e.g., Bicycle Trails Council, 82 F.3d at 145154; Potter, 628 F. Supp. at 906. 200SeeBicycle Trails Council, 82 F.3d at 1452 (quoting Chevron, U.S.A., Inc. v. Natural Resources Defense Council, Inc., 467 U.S. 837, 84243 (1984)). 201See, e.g., Potter, 628 F. Supp. at 909. But seeBicycle Trails Council, 82 F.3d at 145253. In applying the Chevron analysis, the Ninth Circuit posed the first question as to whether Congress intended the Organic Act and the 1970 and 1978 amendments to uniformly manage all areas with the fundamental goal of resource protection. See Bicycle Trails Council, 82 F.3d at 1452. The court answered in the affirmative. See id. at 1453. Although posing such a question in the PWC analysis would yield the same answer (and make proceeding to the next question unnecessary), it seems more logical that most courts would ask a narrower question which focused more on a relationship between the Organic Act and the specific activity in question. See, e.g., Potter, 628 F. Supp. at 909. 202See Bicycle Trails Council, 82 F.3d at 1454. 203See id.; 628 F. Supp. at 90910. 204See Bicycle Trails Council, 82 F.3d at 1454; Potter, 628 F. Supp. at 909. 205See Bicycle Trails Council, 82 F.3d at 1454. 206See id. 207See id. 208See id.; Potter, 628 F. Supp. at 909. 209 82 F.3d at 1454. 210See 16 U.S.C. � 1a-1 (1994); see alsosupra notes 2732 and accompanying text. 211SeeBicycle Trails Council, 82 F.3d at 1454. 212See id. at 1455; Mausolf v. Babbitt, 125 F.3d 661, 66970 (8th Cir. 1997). 213See 82 F.3d at 1455; Personal Watercraft Use Within the NPS System, 63 Fed. Reg. 49,312, 49,31314 (1998) (to be codified at 36 C.F.R. pts. 1 & 3) (proposed Sept. 15, 1998). 214See 48 F.3d 540, 545 (D.C. Cir. 1995). 215SeeMausolf, 125 F.3d at 66970. 216See id.; 63 Fed. Reg. at 49,31349,314. 217See 16 U.S.C. � 1 (1994); National Rifle Assn v. Potter, 628 F. Supp. 903, 90910 (D.D.C. 1986); Lane, supra note 19, at 525. 218 16 U.S.C. � 1. 219See id.; Michigan United Conservation Clubs v. Lujan, 949 F.2d 202, 207 (6th Cir. 1991); Potter, 628 F. Supp. at 90910; Mantell & Metzger, supra note 33, at 13. 220See Wilderness Pub. Rights Fund v. Kleppe, 608 F.2d 1250, 1254 (9th Cir. 1979); Southern Utah Wilderness Alliance v. Dabney, 7 F. Supp. 2d 1205, 1211 (D. Utah 1998). 221See 16 U.S.C. � 1. 222Seeid. 223See id. 224See id. 225SeeMantell & Metzger, supra note 33, at 13. The authors also make the point that, as a practical effect, if the preservation mandate is neglected, both conservation and enjoyment of the System are endangered. See id. 226See 16 U.S.C. � 1a-1; H.R. Rep. No. 95581, pt. 1, at 21 (1977) reprinted in 1978 U.S.C.C.A.N. 463, 467. 227See 16 U.S.C. � 1a-1; H.R. Rep. No. 95581 at 21, 33. 228See 16 U.S.C. � 1a-1; H.R. Rep. No. 95581 at 21, 33. 229See NPS Management Policies: Introduction,supra note 102. 230See id. 231See id. 232See id.; Personal Watercraft Use Within the NPS System, 63 Fed. Reg. 49,312, 49,31349,314 (1998) (to be codified at 36 C.F.R. pts. 1 & 3) (proposed Sept. 15, 1998). 233See Michigan United Conservation Clubs v. Lujan, 949 F.2d 202, 207 (6th Cir. 1991); National Rifle Assn v. Potter, 628 F. Supp. 903, 90910, 912 (D.D.C. 1986). 234 628 F. Supp. at 905, 912. In this opinion, the court also directed attention to the 1978 amendments reference to a singular purpose of the Organic Act. Seeid. at 910. 235See, e.g., Michigan United Conservation Clubs, 949 F.2d at 207; Bicycle Trails Council v. Babbitt, 82 F.3d 1445, 1450 (9th Cir. 1996). 236See, e.g., Michigan United Conservation Clubs, 949 F.2d at 207; Bicycle Trails Council, 82 F.3d at 1450. 237See Wilderness Pub. Rights Fund v. Kleppe, 608 F.2d 1250, 1254 (9th Cir. 1979); Southern Utah Wilderness Alliance v. Dabney, 7 F. Supp. 2d 1205, 1211 (D. Utah 1998). 238SeeKleppe, 608 F.2d at 1254; Southern Utah Wilderness Alliance, 7 F. Supp. 2d at 1211. 239SeeSouthern Utah Wilderness Alliance, 7 F. Supp. 2d at 1211 (citing Chevron, U.S.A., Inc. v. Natural Resources Defense Council, Inc., 467 U.S. 837, 845 (1984) for reasonable accommodation test in situation of conflicting statutory mandates). 240See id. 241See Personal Watercraft Use Within the NPS System, 63 Fed. Reg. 49,312, 49,31649,317 (1998) (to be codified at 36 C.F.R. pts. 1 & 3) (proposed Sept. 15, 1998). 242SeeSouthern Utah Wilderness Alliance, 7 F. Supp. 2d at 1212. 243See id; 63 Fed. Reg. at 49,313. 244See Southern Utah Wilderness Alliance, 7 F. Supp. 2d at 1212. 245See id.; 63 Fed. Reg. at 49,313. 246SeeSouthern Utah Wilderness Alliance, 7 F. Supp. 2d at 1212; 63 Fed. Reg. at 49,313. 247See Personal Watercraft Indus. Assn v. Department of Commerce, 48 F.3d 540, 544-45 (D.C. Cir. 1995). 248See 46 C.F.R. �� 24.1017 (1997). 249See Personal Watercraft Indus. Assn, 48 F.3d at 544-45; see 46 C.F.R. �� 25.25, 25.30; Everglades National Park Special Regulations, 59 Fed. Reg. 58,781, 58,78358,784 (1994). 250See 16 U.S.C. � 1a-2(h) (1994). 251SeeH.R. Rep. No. 941569, 13 (1976), reprinted in 1976 U.S.C.C.A.N. 4290, 429899. 252See id. 253See 16 U.S.C. � 1a-2(h); H.R. Rep. No. 941569 at 13. 254See 48 F.3d 540, 544 (D.C. Cir. 1995). 255See id. at 544 (citing United States v. Edge Broad. Co., 509 U.S. 418 (1993) for its statement that an agency does not have to make progress on every front before it can make progress on any front.). 256See id. at 545. 257See id. at 546. 258See Personal Watercraft Use Within the NPS System, 63 Fed. Reg. 49,312, 49,31649,317 (1998) (to be codified at 36 C.F.R. pts. 1 & 3) (proposed Sept. 15, 1998). 259See id. at 49,316. 260See id. 261See id. at 49,313. 262See 16 U.S.C. � 1a-1 (1994); Michigan United Conservation Clubs v. Lujan, 949 F.2d 202 (6th Cir. 1991); 36 C.F.R. � 1.5 (1998). 263See 36 C.F.R. � 1.5(a). 264See id. 265See id. 266See id. 267See id. � 1.5(b). 268See 36 C.F.R. � 1.5(b); Personal Watercraft Use Within the NPS System, 63 Fed. Reg. 49,312, 49,31649,317 (1998) (to be codified at 36 C.F.R. pts. 1 & 3) (proposed Sept. 15, 1998). 269See 36 C.F.R. � 1.5(b). 270See id.; see, e.g., Sward & Doyle, supra note 10, at A-22; Winegar, supra note 10, at E3. 271See 16 U.S.C. � 1a-1 (1994); Michigan United Conservation Clubs v. Lujan, 949 F.2d 202, 207-08 (6th Cir. 1991). 272See 16 U.S.C. � 1a-1; Michigan United Conservation Clubs, 949 F.2d at 204; David J. Simon, Our Common Lands: Defending the National Parks 7778 (1988). 273SeeMichigan United Conservation Clubs, 949 F.2d at 20708 (reasoning System unit enabling legislation permitting hunting did not extend to trapping because the legislation in question and legislative histories did not mention trapping and, in other instances, Congress had explicitly provided for trapping); see alsosupra notes 8992 and accompanying text. 274See 16 U.S.C. � 1a-1; Michigan United Conservation Clubs, 949 F.2d at 20708. 275See 16 U.S.C. �� 459d-d-7, 460fff-fff-2, 460t-t-3 (1994). 276See id. �� 459d-d-7, 460fff-fff-2. 277See id. �� 460fff(a)(1); Bicycle Trails Council v. Babbitt, 82 F.3d 1445, 146061 (9th Cir. 1996). 278SeeBicycle Trails Council, 82 F.3d at 1461. 279See id. 280See 16 U.S.C. �� 460fff(a)(2), 460t(a), 460t-2(a). For example, Bighorn Canyons enabling legislation leaves it to the Secretary of the Interior to provide for conservation of scenic, scientific, historic, and other values contributing to public enjoyment. Id. � 460t-2(a). 281See 16 U.S.C. � 1a-1. 282See id. �� 1, 1a-1; Michigan United Conservation Clubs v. Lujan, 949 F.2d 202, 207 (6th Cir. 1991); Bicycle Trails Council, 82 F.3d at 145154; National Rifle Assn v. Potter, 628 F. Supp. 903, 90910 (D.D.C. 1986); H.R. Rep. No. 911265 (1970), reprinted in 1970 U.S.C.C.A.N. 3785, 3785;Mantell & Metzger, supra note 33, at 13. 283See Personal Watercraft Use Within the NPS System, 63 Fed. Reg. 49,312, 49,313 (1998) (to be codified at 36 C.F.R. pts. 1 & 3) (proposed Sept. 15, 1998). 284See id. at 49,314. For example, Everglades National Park and the Tahoe Regional Planning Agency, consisting of representatives from Nevada and California, banned PWC from their respective jurisdictions. See id. 285See id. at 49,31349,314. 286See Sward & Doyle, supra note 10. 287See id. (citing spokeswoman who said GGNRA acted in part because there was the possibility that as other agencies put tighter controls on jet skis, their use would increase in the bay.). 288See 16 U.S.C. � 1a-1 (1994); Bicycle Trails Council v. Babbitt, 82 F.3d 1445, 145154 (9thCir. 1996); H.R. Rep. No. 911265 (1970), reprinted in 1970 U.S.C.C.A.N. 3785, 3785. 289See Personal Watercraft Use Within the NPS System, 63 Fed. Reg. 49,312, 49,313 (1998) (to be codified at 36 C.F.R. pts. 1 & 3) (proposed Sept. 15, 1998). Since, theoretically, all Americans had the opportunity to comment on and then, if need be, challenge NPSs handling of PWC use, the PWIAs complaint that there was no public participation in the process is unfounded. See id.; National Park Service Has Gone Too Far,supra note 10. 290See 36 C.F.R. �� 1.5(3)(c), 1.7(a)(1) & (2) (1998). 291See 16 U.S.C. � 1a-1; Bicycle Trails Council, 82 F.3d at 145154; H.R. Rep. No. 911265 (1970), reprinted in 1970 U.S.C.C.A.N. 3785, 3785. 292See Winks, supra note 13, at 585. 293See 63 Fed. Reg. at 49,31349,314. 294See id. at 49,314. 295See id. at 49,313. 296See id. at 49,31349,314. 297See id. 298See 63 Fed. Reg. at 49,313. 299See id. 300See 36 C.F.R. �� 1.5, 1.7 (1998). 301See 63 Fed. Reg. at 49,314. 302See, e.g., id. at 49,31449,315; Carey, supra note 4, at 56. 303See 63 Fed. Reg. at 49,314. 304See generally Personal Watercraft Indus. Assn v. Department of Commerce, 48 F.3d 540 (D.C. Cir. 1995); 63 Fed. Reg. at 49,313. 305See 63 Fed. Reg. at 49,316.