REVENUE DELEGATION AUTHORITY ORDER NO. 4-2011 issued on May 16, 2011 authorizes the concerned Assistant Commissioners under the Operations Group to approve and/or sign the documents specified below while the Deputy Commissioner for Operations Group is on leave of absence from May 16, 2011 to June 8, 2011. A. For the ACIR of the Collection Service i. Tax Debit Memos (TDMs) as utilization of Tax Credit Certificates (TCCs); ii. TCCs issued arising from transfers, revalidation of TCCs issued solely by the BIR and those jointly issued by the BIR and those jointly issued by the BIR and the Dept. of Finance One-Stop Shop (DOF-OSS) Tax Credit and Duty Drawback Center; iii. Transfer and Revalidation Approval/Recommendation addressed to the Executive Director of the DOF-OSS; and iv. Approval of applications for cash conversions of TCCs. B. For the ACIR of the Assessment Service i. TCCs other than those mentioned in A.2 above; and ii. Tax Refunds Approval under the Operations Group Said authority shall take effect on May 16, 2011 and shall be automatically revoked upon the resumption of duty of the Deputy Commissioner for Operations Group.