Legislative Histories of U.S. Laws on the Internet: Commercial Sources
This list of legislation indicates which legal databases contain legislative histories for each act on the list. Look for the ones that say WL (Westlaw) or LEX (LexisNexis). The library does not subscribe to HeinOnline.
In order to view these histories, you must first login to the library databases, then access either Westlaw or Lexis Nexis. Search for it by P.L number.