Uniform Premarital and Marital Agreement Act

Also known as the UPMAA, this is the successor the Uniform Prenuptial Agreement Act (UPAA). As of March 2026, only two states (Colorado and North Dakota) have adopted the UPMAA. The primary differences between the UPAA (which Arizona has adopted) and the UPMAA is the latter covers both post-nuptial and pre-nuptial agreements, and the UPAA covers only prenuptial agreements. The UPMAA adds some significant additions in terms of procedural unconscionability, i.e., it is aimed at curbing situations where a spouse is coerced into signing an agreement.