Which of the following statements is true regarding dangerous goods certification?

The assertion that dangerous goods certification must be documented in the Air Operator Certificate (AOC) is accurate. The AOC serves as an essential regulatory document that outlines an air operator's ability to conduct safe operations, which includes the transportation of dangerous goods. This certification ensures that the operator meets all legal requirements and safety protocols related to transporting hazardous materials. Legitimate compliance means keeping precise records, and such documentation within the AOC is vital for audits, inspections, and operational integrity.

Additionally, while dangerous goods regulations apply universally, there's a higher level of scrutiny for commercial operators who must adhere to stringent guidelines regarding the handling and transportation of hazardous materials. Thus, proper documentation in the AOC is not only a regulatory requirement but also a critical component of ensuring safe and effective operations.