Chapter 64. Methane Transportation Research, Development, and Demonstration 15 U.S. Code §3801. Congressional statement of findings and declaration of policy 15 U.S. Code §3802. Definitions 15 U.S. Code §3803. Duties of Secretary of Energy 15 U.S. Code §3804. Coordination with other Federal departments and agencies 15 U.S. Code §3805. Research and development activities 15 U.S. Code §3806. Demonstrations 15 U.S. Code §3807. Use of methane-fueled vehicles by Federal agencies and departments 15 U.S. Code §3809. Authorization of appropriations; required funding 15 U.S. Code §3810. Relationship to other laws