REVENUE DELEGATION AUTHORITY ORDER NO. 6-2022 issued on July 12, 2022 amends the delegated authority of signatories of documents related to procurement functions in the BIR National Office. The documents listed in Annex “A” of the Order, which are currently being signed by the authorized officials pursuant to existing Revenue Delegation Authority Orders (RDAOs) and unnumbered memorandum shall now be approved and signed by the Commissioner of Internal Revenue (CIR) and other authorized signatories. In the event that the CIR is on leave, or on official travel, the authorized Officer-InCharge shall sign/approve the documents listed in Annex “A”. This Order amends RDAO No. 4-2016, unnumbered memorandum dated July 4, 2016 and RDAO No. 4-2019 insofar as the herein documents are concerned