Philadelphia-based Am Law 100 firm Cozen O’Connor announced Tuesday the firm will transition from its current fully remote model of work to a test-run of a hybrid arrangement from Sept. 8 through the end of 2021, with different expectations set up for various positions based on office needs.

The announcement comes as law firms work out return-to-office policies, seeking to accommodate preferences of various employees to work from home versus in the office. Leaders at Cozen O’Connor said they anticipate that by the end of the year, the firm will “have a clearer perspective on this new way of working” and will be in a position to announce any permanent policy changes.