marine law vs maritime law

marine law and maritime law both are nouns.

Word	Noun	Adjective	Verb	Adverb
marine law	Yes	No	No	No
maritime law	Yes	No	No	No

As nouns, marine law and maritime law are synonyms defined as:

marine law and maritime law: the branch of international law that deals with territorial and international waters or with shipping or with ocean fishery etc.

Other synonyms of marine law include admiralty law.

marine law (noun)	maritime law (noun)
the branch of international law that deals with territorial and international waters or with shipping or with ocean fishery etc.	the branch of international law that deals with territorial and international waters or with shipping or with ocean fishery etc.