Three provisions of the act are set to expire at the end of the month. They deal with access to business records or anything else related to a terror investigation, such as getting roving wiretaps and being able to keep tabs on so-called lone wolf terrorists.
The house bill would extend the provisions to December.
Senate Judiciary Committee Chairman Patrick Leahy has proposed the provisions be extended, with some modifications, until 2013 -- a date supported by Attorney General Eric Holder.
That means lawmakers will have to strike a compromise if the provisions are to be extended.