The 100th Illinois General Assembly, consisting of the
Illinois House and
Illinois Senate
The Illinois Senate is the upper chamber of the Illinois General Assembly, the legislative branch of the government of the State of Illinois in the United States. The body was created by the first state constitution adopted in 1818. Under the ...
, convened on January 11, 2017. It adjourned ''
sine die
Adjournment ''sine die'' (from Latin 'without a date') is the conclusion of a meeting by a deliberative assembly, such as a legislature or organizational board, without setting a date to reconvene. The assembly can reconvene, either in its pres ...
'' on January 9, 2019.
Legislation
The 100th General Assembly enacted a total of 1,190 bills into law. Notably among these, it passed the first state budget in more than two years, ending the
Illinois Budget Impasse
The Illinois Budget Impasse was a 793-day-long (2 years and 62 days) budget crisis in the state of Illinois. From July 1, 2015, to August 31, 2017, Illinois was without a complete state budget for fiscal years 2016, 2017, and part of 2018. As a ...
that began under the
99th Illinois General Assembly. The budget was passed over the veto of Governor
Bruce Rauner
Bruce Vincent Rauner (; born February 18, 1956) is an American businessman, venture capitalist, and politician who served as the 42nd governor of Illinois from 2015 to 2019. A member of the Republican Party, he had a decades-long career in inves ...
.
Other laws passed over the governor's veto included a measure allowing municipalities to designate urban agriculture zones to provide
tax abatement
A tax holiday is a temporary reduction or elimination of a tax. It is synonymous with tax abatement, tax subsidy or tax reduction. Governments usually create tax holidays as incentives for business investment, although the arrangement has also ...
s to
urban farming operations. The override passed the State Senate by 49 to 1.
Other notable legislation included a measure that amended the
Illinois Abortion Law of 1975, removing a
trigger law that would have outlawed abortion in the state if the United States Supreme Court overturned the ''
Roe v. Wade
''Roe v. Wade'', 410 U.S. 113 (1973),. was a List of landmark court decisions in the United States, landmark decision of the U.S. Supreme Court in which the Court ruled that the Constitution of the United States protected the right to have an ...
'' decision that affirmed a constitutional right to abortion. The bill was signed by Governor Rauner, who was in favor of abortion rights. Although amended, the Illinois Abortion Law nonetheless remained on the books until the passage of the
Illinois Reproductive Health Act
Illinois ( ) is a state in the Midwestern United States. It borders on Lake Michigan to its northeast, the Mississippi River to its west, and the Wabash and Ohio rivers to its south. Of the fifty U.S. states, Illinois has the fifth-large ...
by the
101st Illinois General Assembly in 2019.
The General Assembly also amended the
Illinois Endangered Species Protection Act to ban the use of
elephant
Elephants are the largest living land animals. Three living species are currently recognised: the African bush elephant ('' Loxodonta africana''), the African forest elephant (''L. cyclotis''), and the Asian elephant ('' Elephas maximus ...
s in traveling circuses. Illinois was the first state that banned such performances.
The General Assembly also enacted multiple
gun control
Gun control, or firearms regulation, is the set of laws or policies that regulate the manufacture, sale, transfer, possession, modification, or use of firearms and ammunition by civilians.
Most countries allow civilians to own firearms, bu ...
measures, including one that imposed a 72-hour
waiting period
A waiting period is the period of time between when an action is requested or mandated and when it occurs.
In the United States, the term is commonly used in reference to gun control, abortion and marriage licences, as some U.S. states require ...
for all firearm purchases.
In January 2018, Illinois became the first state in the US to adopt legislation recognizing
postpartum depression
Postpartum depression (PPD), also called perinatal depression, is a mood disorder which may be experienced by pregnant or postpartum women. Symptoms include extreme sadness, low energy, anxiety, crying episodes, irritability, and extreme cha ...
and
postpartum psychosis
Postpartum psychosis (PPP), also known as puerperal psychosis or peripartum psychosis, involves the abrupt onset of psychotic symptoms shortly following childbirth, typically within two weeks of delivery but less than 4 weeks postpartum. PPP is ...
as mitigating factors in forcible felonies.
The legislation applies to
criminal sentencing
In criminal law, a sentence is the punishment for a crime ordered by a trial court after conviction in a criminal procedure, normally at the conclusion of a trial. A sentence may consist of imprisonment, a fine, or other sanctions. Sentences for ...
as well as
post-conviction relief
In law, post conviction refers to the legal process which takes place after a trial results in conviction of the defendant. After conviction, a court will proceed with sentencing the guilty party. In the American criminal justice system, once a ...
.
It was signed into law by governor Bruce Rauner just before the end of the session, on January 8, 2018.
Senate

Of the Senate's 59 members, 40 stood for election in the
2016 Illinois Senate election. Two districts, the 47th and 59th, changed hands from the Democratic to the Republican Party.
Senate leadership
Party composition
The Senate of the 100th General Assembly consisted of 22 Republicans and 37 Democrats.
State senators
House
Party composition
The House of the 100th General Assembly consisted of 51 Republicans and 67 Democrats.
The composition reflects the results of the
2016 election.
House leadership
State representatives
See also
*
List of Illinois state legislatures
The Illinois General Assembly, the State legislature (United States), legislature of the U.S. state of Illinois, has convened many times since List of U.S. states by date of admission to the Union, statehood became effective on December 3, 1818 i ...
References
{{Illinois General Assemblies
2017 in Illinois
2018 in Illinois
Illinois legislative sessions
2017 U.S. legislative sessions
2018 U.S. legislative sessions