REVENUE MEMORANDUM ORDER NO. 7-2018 issued on January 22, 2018 prescribes the submission to the Office of the Commissioner of Inventory and Status Report of Revalidated/Non-Revalidated Letters of Authority (LAs) pursuant to RMO No. 57-2016 and LAs issued after June 30, 2016 within five (5) days from the issuance of this Order. Non-compliance with the said directive shall be a ground for the imposition of appropriate administrative sanctions/penalties.