Missouri Revised Statutes
Chapter 1
Laws in Force and Construction of Statutes
Section 1.130
August 28, 2008

Effective date of laws.
1.130. A law passed by the general assembly takes effect
ninety days after the adjournment of the session at which it is
enacted; but if the general assembly recesses for thirty days or
more, it may prescribe by joint resolution that laws previously
passed and not effective take effect ninety days from the
beginning of the recess, subject to the following exceptions:
(1) A law necessary for the immediate preservation of the
public peace, health or safety, which emergency is expressed in
the body or preamble of the act and which is declared to be thus
necessary by the general assembly, by a vote of two-thirds of its
members elected to each house the vote to be taken by yeas and
nays, and entered on the journal, or a law making an
appropriation for the current expenses of the state government,
for the maintenance of the state institutions or for the support
of public schools, takes effect as of the hour and minute of its
approval by the governor; which hour and minute may be endorsed
by the governor on the bill at the time of its approval;
(2) In case the general assembly, as to a law not of the
character herein specified, provides that the law takes effect on
a date in the future subsequent to the expiration of the period
of ninety days herein mentioned the law takes effect on the date
thus fixed by the general assembly;
(3) In case the general assembly provides that any law takes
effect as provided in subdivision (1) of this section, the
general assembly may provide in such law that the operative date
of the law or parts of the law takes effect on a date subsequent
to the effective date of the law.
(RSMo 1939 § 659, A.L. 1945 p. 1114, A.L. 1957 p. 587)
Prior revisions: 1929 § 659; 1919 § 7067; 1909 § 8061
CROSS REFERENCE:
Effective date of constitutional amendments, Const. Art. XII
§ 2(b)
(1991) "Later in time" rule of statutory construction does not
apply when sections are passed in the same legislative session
and neither has an emergency clause. Berdella v. Pender, 821
S.W.2d 846 (Mo.banc).

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Missouri General Assembly