ensure the availability of personal protective equipment and opioid receptor antagonists, including naloxone, to all U.S. Customs and Border Protection officers, agents, other personnel, and canines at risk of accidental exposure to synthetic opioids. (d) Oversight To ensure effectiveness of the policy described in subsection (a)— (1) the Commissioner of U.S. Customs and Border Protection shall regularly monitor the efficacy of the implementation of such policy and adjust protocols and procedures, as necessary