According to Postcom.org:

At today’s business meeting of the Federal Workforce, Postal Service, and the District of Columbia Subcommittee on the mark up of H.R. 22, ³United States Postal Service Financial Relief². H.R. 22, it was recommended that chapter 89 of title 5, United States Code be amended to allow the United States Postal Service to pay its share of contributions for annuitants¹ health benefits out of the Postal Service Retiree Health Benefits Fund over a three year period.