Iowa Code

Iowa Code § 3.7 (2026)

Effective dates of Acts and resolutions

✓ current as of July 2026

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1. All Acts and resolutions of a public nature passed at regular sessions of the general assembly shall take effect on the first day of July following their passage, unless some other specified time is provided in an Act or resolution.

2. All Acts and resolutions of a public nature which are passed prior to July 1 at a regular session of the general assembly and which are approved by the governor on or after July 1, shall take effect forty-five days after approval. However, this subsection shall not apply to Acts provided for in section 3.12 or Acts and resolutions which specify when they take effect.

3. All Acts and resolutions passed at a special session of the general assembly shall take effect ninety days after adjournment of the special session unless a different effective day is stated in an Act or resolution.

4. An Act which is effective upon enactment is effective upon the date of signature by the governor; or if the governor fails to sign it and returns it with objections, upon the date of passage by the general assembly after reconsideration as provided in Article III, section 16 of the Constitution of the State of Iowa; or if the governor fails to sign or return an Act submitted during session, but prior to the last three days of a session, on the fourth day after it is presented to the governor for the governor’s approval. An Act which has an effective date which is dependent upon the time of enactment shall have the time of enactment determined by the standards of this subsection.\n\nTue Dec 09 22:34:44 2025 Iowa Code 2026, Chapter 3 (26, 0) 3 STATUTES AND RELATED MATTERS, §3.20\n\n 5. A concurrent or joint resolution which is effective upon enactment is effective upon the date of final passage by both chambers of the general assembly, except that such a concurrent or joint resolution requiring the approval of the governor under section 262A.4 or otherwise requiring the approval of the governor is effective upon the date of such approval. A resolution which is effective upon enactment is effective upon the date of passage. A concurrent or joint resolution or resolution which has an effective date which is dependent upon the time of enactment shall have the time of enactment determined by the standards of this subsection.

6. Unless retroactive effectiveness is specifically provided for in an Act or resolution, an Act or resolution which is enacted after an effective date provided in the Act or resolution shall take effect upon the date of enactment.

7. Proposed legalizing Acts shall be published prior to passage as provided in chapter 585.

8. An Act or resolution under this section is also subject to the applicable provisions of Article III, sections 16 and 17 of the Constitution of the State of Iowa. [C51, §22; R60, §25; C73, §34; C97, §37; C24, 27, 31, 35, 39, §53; C46, 50, 54, 58, 62, 66, 71, 73, 75, 77, 79, 81, §3.7] 87 Acts, ch 1, §1; 2006 Acts, ch 1010, §2 Referred to in §2B.17A, 422.12E Iowa Constitution, Art. III, §26 For the effective dates of Acts and resolutions prior to the enactment of 87 Acts, ch 1, §1, effective February 19, 1987, see Code 1987, Code 1966, and prior Codes Acts of private nature, §3.11\n\n 3.8 through 3.10 Reserved. \n

Notes of Decisions

Cited in 36 cases (6 in the last 5 years), 1982–2023 · leading case: State of Iowa v. Antoine Tyree Williams, 929 N.W.2d 621 (Iowa 2019).

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State of Iowa v. Antoine Tyree Williams, 929 N.W.2d 621 (Iowa 2019). “69, § 50; Iowa Code § 3.7 (1) (2017). We conclude the district court made the right call when it held the 2017 amendment did not apply in this case.”

State v. Lathrop, 781 N.W.2d 288 (Iowa 2010). “Evidence admitted at trial1 included testimony by the victim that she had sex with the defendant soon after they began dating in March 2005.”

United States v. Marshaun Merrett, 8 F.4th 743 (8th Cir. 2021). “See Iowa Code § 3.7 (1). We need not address in this case how the new statutory language affects Walker.”

Heartland Express, Inc. v. Terry, 631 N.W.2d 260 (Iowa 2001). “71 read: If an employee, while working outside the territorial limits of this state, suffers an injury on account of which the employee, or in the event of death, the employee’s dependents, would have been entitled to the benefits provided by this chapter had such injury…”

In The Matter Of Prop. Seized From Bo (Brian) Li, Na Tian, & Wei Tian, 911 N.W.2d 423 (Iowa 2018). “114, § 15; see also Iowa Code § 3.7 (1) (2017). 2 Section 152C.”

Iowa Dep't of Transp. v. Iowa Dist. Court for Buchanan Cnty., 587 N.W.2d 774 (Iowa 1998). · cites it 2× “177, § 9; Iowa Code § 3.7 (1). On October 17, 1997, Kayser filed an application with the district court asking that his eligibility for a driver's license be restored.”

Voss v. Iowa Dep't of Transp., Motor Veh. Div., 621 N.W.2d 208 (Iowa 2001). “See Iowa Code § 3.7 (“All Acts ... passed at regular sessions .”

State v. Flam, 587 N.W.2d 767 (Iowa 1998). · cites it 2× “177, § 9; Iowa Code § 3.7 (1). Finding no basis for reversal, we affirm.”

Iowa Dep't of Transp. v. Iowa Dist. Court for Scott Cnty., 587 N.W.2d 781 (Iowa 1998). · cites it 2× “177, § 9; Iowa Code § 3.7 (1). Although the two-year waiting period required by section 321J.”

Junkins v. Branstad, 421 N.W.2d 130 (Iowa 1988). “See Iowa Code §§ 3.7 , 4.5 (1985). Also in 1986, the legislature provided a statutory definition of an “appropriations *132 bill.”

Janda v. Iowa Indus. Hydraulics, Inc., 326 N.W.2d 339 (Iowa 1982). “Iowa Code § 3.7 (1981). The legislature, however, delayed the effective date of this legislation until January 1, 1981, thus permitting and encouraging an orderly disposition of cases pending March 28,1980, before the new interest rate would affect them.”

Heartland Express v. Gardner, 675 N.W.2d 259 (Iowa 2004). “106, § 1; see also Iowa Code § 3.7 (1) (1999) (providing the effective date for legislation that does not otherwise specify an effective date).”

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