Those organizational units of the department and the officers of those units specified by law shall have all of the powers and duties enumerated in the specific laws involved. However, the carrying out of those powers and duties shall be subject to the direction and supervision of the secretary, and he shall retain the final decision-making authority and responsibility for the administration of any laws as provided in Subsection B of Section 6 [9-7A-6 N.M. Stat. Ann.] of the Department of Environment Act. The department shall have access to all records, data and information of other state departments, agencies and institutions, including its own organizational units, not specifically held confidential by law.