Live rock
Live rock means living marine organisms, or an assemblage thereof, attached to a hard substrate, including dead coral or rock (excluding individual mollusk shells).
Source
50 CFR § 622.2
Scoping language
In addition to the definitions in the Magnuson Act and in 600.10 of this chapter, and the acronyms in 600.15 of this chapter, the terms and acronyms used in this part have the following meanings: