Where a section or a part of a statute is amended, it is not to be considered as having been repealed and reenacted in the amended form, but the portions which are not altered are to be considered as having been the law from the time when they were enacted, and the new provisions are to be considered as having been enacted at the time of the amendment.
Mont. Code Ann. § 1-2-203
Effect of amendment of statute
En
Official source: Montana Code Annotated (Montana Legislature). Reproduced from public-domain Montana statutes; confirm against the official source for the current text. Not legal advice.