The NHL and NHLPA announced several new protocols on Thursday after COVID-19 outbreaks on five teams caused nearly a dozen games to be postponed this week. The enhanced measures, endorsed by the league's medical experts, will be in effect until at least Feb. 28 and could feature further restrictions.

The Buffalo Sabres, Colorado Avalanche, Minnesota Wild, New Jersey Devils and Philadelphia Flyers all currently have multiple players on the league's COVID Protocol Related Absences list, and have had multiple games postponed.

In the case of the Devils and Sabres, there are concerns that transmission of the virus happened during one of their games, as on-ice officials who worked that game have also tested positive.

The NHL has postponed 35 games this season due to COVID protocols since the 2020-21 regular season began on Jan. 13. Of those games, 17 have yet to be rescheduled.

Among the protocol changes announced on Thursday:

Addition of POC Testing for U.S.-Based Clubs

Along with daily lab-based PCR tests, the NHL is working with its U.S.-based teams to provide point of care (POC) rapid testing to be administered on game days to all players, staff and on-ice officials who work in and around the bench area during games.

In the past, NHL teams have only used rapid testing for specific situations, like after players returned from a quarantine period.

Teams acquire the tests themselves, and a source tells ESPN that daily rapid testing won't be mandated by the NHL until the league is certain there is an ample supply for each team.

"Although these tests have a slightly lower ability to detect the presence of COVID-19 than lab-based PCR testing, they will provide prompt, same-day results that will reduce the chance of game participation by individuals who might have active infection. If a 'testee' tests positive, such individual will be immediately isolated as per the Positive Test Protocol and contact tracing will promptly ensue. The individual will not participate in the game that day," the NHL said in a release.

The NHL is working with its Canadian franchises on the availability of similar tests.

Reconfiguring Seating For Previously Infected Players

As there has been evidence of "some protective immunity to re-contracting the COVID-19 virus for at least 90 days after their initial infection," teams are encouraged to reconfigure assigned seating in the dressing room, during travel and at meals so that previously infected players are seated next to individuals who never contracted the virus.

The previously infected players are used as a "buffer" for players and staff that are unlikely to have that immunity.

Work/Home Quarantine

All players, coaches, training staff, equipment staff and other members of the traveling party "will be required to remain at home and not leave their place of residence except to attend practices and games, to exercise outdoors on an individual basis, to perform essential activities (e.g., go to the doctor), or to deal with family or other emergencies and other extraordinary circumstances."

The NHL is also "strongly recommending" that household members limit their activities outside the home as well, and is encouraging teams to provide ways for household members to be tested for COVID-19 regularly.

Facial Coverings

While the league continues to strongly encourage the wearing of masks, it's also recommending that teams source and provide KN95 facemasks to all game personnel and are to be worn "at all times when not exercising, including when players are in the locker room."

Team Meetings

All team and other meetings will now be required to be conducted virtually, including all coaching meetings and video review sessions.

Ventilation on the Bench and in the Penalty Box

The NHL recently removed plexiglass behind the player benches to create better ventilation. Now, they are mandating that the glass from the back of the penalty box areas be removed as well. To protect any spectators attending the game, teams will have to install mesh netting behind the benches and the penalty box.

If teams choose to seat fans around the benches and penalty boxes, they'll also have to put a plexiglass barrier in the seating section that's at least 25 feet back from those areas and have security personnel stationed directly behind the player areas.

The NHL and NHLPA are also using their in-game player tracking system to better map interaction between players on the ice during games, and will be sending some positive test samples for genomic sequencing "to determine specific strain types and to estimate pathways of transmission."