In giving the format the green light, the NHLPA stressed several details still need to be negotiated before games can begin.
The proposal will now go to the NHL board of governors, which is expected to approve the plan in the next few days.
Though the approval is considered significant, the task of establishing a path to getting players back on the ice remains challenging.
Its unclear how the league will address players concerns over spending potentially lengthy stretches of time in self-isolation away from their families.
Overall, I think players will be fine during the summer months, the person said, speaking on the condition of anonymity because the return to play format has not been approved.