((a)) The Office may join, on a shared-costs basis, with State and local governments in cooperative recruiting and examining activities under such procedures and regulations as may jointly be agreed upon.
((b)) The Office also may, on the written request of a State or local government and under such procedures as may be jointly agreed upon, certify to such governments from appropriate Federal registers the names of potential employees. The State or local government making the request shall pay the Office for the costs, as determined by the Office, of performing the service, and such payments shall be credited to the appropriation or fund from which the expenses were or are to be paid.