The NFL and NFLPA were sent a letter from the U.S. House of Representatives Committee on Energy and Commerce requesting the two sides institute HGH testing as the one-year anniversary of the new collective bargaining agreement approaches.
"It is well past time to fulfill last year's agreement ... protect the health and safety of your players and their youngest fans and guarantee the integrity of the National Football League that is beloved by millions of Americans," the letter reads.
The letter was dated July 27 and signed by Committee chair Fred Upton and Henry Waxman, the ranking member of committee, and asks for written assurances that testing will be adopted prior to the 2012 season.
The ratified CBA calls for implementation of HGH testing but the NFLPA hasn't agreed to terms of testing. Commissioner Roger Goodell said in April testing remained a priority.
"It is time for the NFL to follow the Olympic model and start testing for HGH," the letter reads. "Until you do, questions will remain about the commitment of the athletes and the owners of the NFL to health, safety and fair play."