Section 10National Internal Revenue Code of 1997 (Republic Act No. 8424), Sec. 10

Revenue Regional Director. - Under rules and regulations, policies and standards formulated by the Commissioner, with the approval of the Secretary of Finance, the Revenue Regional director shall, within the region and district offices under his jurisdiction, among others:

(a) Implement laws, policies, plans, programs, rules and regulations of the department or agencies in the regional area;

(b) Administer and enforce internal revenue laws, and rules and regulations, including the assessment and collection of all internal revenue taxes, charges and fees.

(c) Issue Letters of authority for the examination of taxpayers within the region;

(d) Provide economical, efficient and effective service to the people in the area;

(e) Coordinate with regional offices or other departments, bureaus and agencies in the area;

(f) Coordinate with local government units in the area;

(g) Exercise control and supervision over the officers and employees within the region; and

(h) Perform such other functions as may be provided by law and as may be delegated by the Commissioner.