Chapter 27. National Trails System 16 U.S. Code §1241. Congressional statement of policy and declaration of purpose 16 U.S. Code §1242. National trails system 16 U.S. Code §1243. National recreation trails; establishment and designation; prerequisites 16 U.S. Code §1244. National scenic and national historic trails 16 U.S. Code §1245. Connecting or side trails; establishment, designation, and marking as components of national trails system; location 16 U.S. Code §1246. Administration and development of national trails system 16 U.S. Code §1247. State and local area recreation and historic trails 16 U.S. Code §1248. Easements and rights-of-way 16 U.S. Code §1249. Authorization of appropriations 16 U.S. Code §1250. Volunteer trails assistance 16 U.S. Code §1251. Definitions