REVENUE MEMORANDUM ORDER NO. 8-2022 issued on January 20, 2022 prescribes the adoption and use of the Bureau of Internal Revenue (BIR) Project Management Manual. The Manual contains some of the generally-recognized and accepted concepts, principles, processes and tools in effective project management. It shall be used as a reference document in the management of projects in the BlR, particularly in defining project concepts and terms, use of various tools, forms and templates and adherence to prescribed procedures and guidelines. Revenue officials, employees and others concerned who are designated as project leaders and implementers shall be guided by the Manual in managing their respective project activities.