This transmittal provides updates on the State Plan and EPD Waiver Adult Day Health Program (ADHP) services per diem rates and modifiers, and replaces earlier guidance on temporary reimbursement rates and modifiers for ADHP services established during the COVID-19 public health emergency (PHE) as provided in DHCF Transmittal # 20-19 (rev. #2), effective January 4, 2021. The updates to the State Plan and EDP Waiver ADHP rates are due to a skilled nursing market basket index inflation factor increase and will be effective for dates of service January 4, 2021 or later.