For the first time in 153 days, N.B.A. players will be allowed back in N.B.A. gyms when the league partly lifts the lockout on Thursday. The league sent a memo to all 30 teams on Tuesday informing them of the move.

Players will be allowed to use team facilities and to work with team trainers on “voluntary conditioning or strength training,” according to the league. However, the trainers cannot supervise “basketball-related activity,” nor can coaches and players interact.

The league and the union are still working to complete the new collective bargaining agreement. Ratification is not expected for another week.

Starting Wednesday, agents and team executives will be allowed to talk about free agents. No deals can be consummated until the league reopens for business. League officials are looking to Dec. 9 for free agency and training camps to begin.