The NFL Referees Association disputed a claim by the NFL that the officials threatened to vote to strike after their contract with the league expired.
The NFLRA counsel, Mike Arnold, said that claim is "patently false" and that the NFLRA's directive was "to prepare for the season and to perform each and every task assigned to them before and after CBA expiration."
The CBA expired following the 2011 season and talks between the two sides broke off. On Monday, the league issued a statement indicating that it will start hiring and training possible replacement officials.
Arnold added that the league intends to freeze and terminate the officials' pension plan and offered salary increases lower than those obtained in the 2006 agreement, according to The Associated Press.