This Practice Note explains the concept of commercial product and commercial service contracting between suppliers of goods and services and the federal government. This Note reviews the advantages of commercial product and commercial service contracting over traditional government contracting and advises current and prospective federal government contractors on how they can benefit from this aspect of procurement reform. This Note includes a discussion of Federal Acquisition Streamlining Act of 1994 (FASA), the implementing regulations under the Federal Acquisition Regulation (FAR), and required contract clauses for commercial product and commercial service prime contracts and subcontracts.