Statuses April 26, 2012: Introduced. May 10, 2012: Hearing by full committee. (64) S. Hrg. 112-540 May 16, 2012: Mr. Toomey added as cosponsor. May 21, 2012: Mr. Blumenthal added as cosponsor. June 5, 2012: Mr. Moran and Mrs. Stabenow added as cosponsors. June 11, 2012: Mr. Hoeven added as cosponsor. June 12, 2012: Mr. Risch added as cosponsor. June 19, 2012: Mr. Franken added as cosponsor. June 26, 2012: Mr. Roberts added as cosponsor. July 9, 2012: Mr. Tester added as cosponsor. July 10, 2012: Mrs. Gillibrand added as cosponsor. July 12, 2012: Mr. Boozman added as cosponsor. July 16, 2012: Mr. Merkley added as cosponsor. July 18, 2012: Mr. Sanders added as cosponsor. July 25, 2012: Mr. Brown of Massachusetts added as cosponsor. August 2, 2012: Mr. Brown of Ohio added as cosponsor. September 10, 2012: Mr. Schumer added as cosponsor. September 20, 2012: Mrs. Hagan added as cosponsor.

Statuses April 26, 2012: Introduced. June 27, 2012: Hearing by subcommittee. (69) S. Hrg. 112-578 July 16, 2012: Mr. Manchin added as cosponsor.

Statuses April 25, 2012: Introduced. May 9, 2012: Mr. Enzi added as cosponsor.

Status Dec 8 2011: Referred to the Senate Energy and Natural Resources Committee.

Status Dec 8 2011: Referred to the Senate Energy and Natural Resources Committee.

Statuses April 24, 2012: Introduced.

Statuses April 19, 2012: Introduced. June 27, 2012: Hearing by subcommittee. (69) S. Hrg. 112-578

Statuses April 19, 2012: Introduced. June 27, 2012: Hearing by subcommittee. (69) S. Hrg. 112-578

Statuses April 17, 2012: Introduced. June 27, 2012: Hearing by subcommittee. (69) S. Hrg. 112-578

Statuses June 27, 2012: Hearing by subcommittee. (69) S. Hrg. 112-578 August 2, 2012: Mr. Begich added as cosponsor.