noun
revised law; amended act
Refers to a law or statute that has been formally amended or revised. Often used in legal and political contexts.
改正法が国会で可決された。
The revised law was passed in the Diet.
新しい改正法は来月施行される。
The new amended act will come into effect next month.
法律 is a general term for 'law', whereas 改正法 is a law that has been amended.
Compound of 改正 (revision, amendment) + 法 (law).