Sec. 4. That this compact shall become operative immediately upon its ratification by any state as between it and the other state or states so ratifying. Ratification shall be made by act of the legislature of the ratifying state.
Mich. Comp. Laws § 2.204
Effective date, ratification
1947, Act 267, Eff
Official source: Michigan Legislature. Reproduced from public-domain Michigan statutes; confirm against the official source for the current text. Not legal advice.