The board may prescribe rules, regulations, and bylaws, in harmony with this chapter, for its own proceedings and government and for the examination of applicants for the practice of accounting. The board may promulgate and amend regulations of professional conduct appropriate to establish and maintain a high standard of integrity and dignity in the profession of public accountancy. Within sixty days after the promulgation of a regulation or amendment, the board shall mail copies of the regulation or amendment to each holder of a license issued under this article, with a notice advising him of the effective date of the regulation or amendment. Failure to mail the regulation, amendment, or notice to all license holders does not affect the validity of the regulation or amendment. The board, or any member of the board, may issue subpoenas to compel the attendance of witnesses and the production of documents and may administer oaths, take testimony, hear proofs, and receive exhibits in evidence for all purposes required in the discharge of its duties. In case of disobedience to a subpoena the board may invoke the aid of an administrative law judge as provided under Article 5 of Chapter 23 of Title 1 in requiring the attendance and testimony of witnesses and the production of documentary evidence and shall adopt a seal to be affixed to all its official documents.