Utah Code § 57-4a-3: Document recordable without acknowledgment -- Exception.

(1) A document or a certified copy of a document may be recorded without acknowledgment if the document:

(a) was executed under law existing at the time of execution;

(b) evidences or affects title to real property; and

(c) was issued under the authority of:

(i) the United States, another state, a court of record, a foreign government, or an Indian tribe; or

(ii) the state or a political subdivision of the state and the document:

(A) was executed on or before July 1, 1988; or

(B) has affixed the Great Seal in accordance with Subsection 67-1a-2(1)(f).

(2) Except as provided in Subsection (1)(c)(ii), a document or a certified copy of a document executed under the authority of the state or a political subdivision of the state may not be recorded unless it includes a certificate of acknowledgment or jurat.