Why is PBR restricted to assessing the effect of commercial fishing activities on marine mammals?
In 1994, the Marine Mammal Protection Acts was amended to improve the governments ability to reduce the effect of commercial fishing activities on marine mammal populations. These amendments include section 117, which requires the calculation of PBR, and section 118, the only section in the MMPA where PBR is applied. Section 118 describes the process for regulating commercial fisheries-related serious injuries and deaths when they reach unacceptable levels.
