Which of the following is NOT an environmental regulation a TAHOMA Boarding Officer must enforce?

The choice that is not an environmental regulation a TAHOMA Boarding Officer must enforce is related to drug trafficking protocols. TAHOMA Boarding Officers primarily focus on environmental regulations aimed at protecting marine ecosystems and maintaining compliance with the laws governing marine environmental protection.

Ballast water management is critical because it addresses the introduction of invasive species through ships' ballast systems. Oil spill regulations are vital for preventing and managing pollution events that can severely impact marine life and coastal environments. Marine waste disposal regulations ensure that vessels properly dispose of waste to minimize environmental harm.

In contrast, drug trafficking protocols are related to law enforcement and public safety rather than environmental protection. While safeguarding against drug trafficking is an important aspect of maritime security, it falls outside the environmental responsibilities specific to TAHOMA Boarding Officers. Therefore, the focus on ecological regulations and environmental integrity is what distinguishes the correct answer in this context.