Until the Senate and the House pass the EXACT SAME BILL and the bill is signed by the President or the bill is not signed and becomes law without signature because BOTH houses passed the bill, there is no law. Just because the House of Representatives voted to pass a law does not make it an enforceable law without passage from the Senate as well.
So all you had is a bill passed by the House in 1947 and a different one passed by the Senate in 1948 and then they have to get together and negotiate a combined or compromised law for passage of both houses before it can become law or the law dies. See Article I, Section 7 of the Constitution.
Title 18 also also includes 18 U.S.C. § 4081 and 18 U.S.C. § 4082, which authorizes the transfer of a federal criminal judgment from the U.S. District Court to the Department of Justice and then from the Department of Justice to the Bureau of Prisons. However, 18 USC 4081 and 4082 are not in the Statutes at Large, and do not exist as a matter of law. No transfer of a judgment is possible, rendering any imprisonment impossible.
