The U.S. Federal Reserve took another step toward special limited payment accounts that would give a lighter version of the master-account services the central bank offers to its fully-fledged banks, opening a comment period on the latest description of the new accounts.

Firms with diverse business models can use such accounts to clear and settle payments to increase speed and reduce their costs, but without master-account status, the Fed explained in a Wednesday statement. The central bank, which supervises and regulates its member banks, had issued a request for information in December to start crafting the concept with an initial 45-day comment period, and this approach is “substantially similar to the prototype outlined” in that…