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While we strive to be as accurate and complete as possible, our researchers are not attorneys, and state laws are often full of nuances and gaps. Legal challenges in some states have resulted in different registration requirements based on the year of conviction or first registration. Users must accept all risks associated with actions taken based on this information. Please help us improve by reporting any errors or omissions via our form at

Missouri Laws Regarding Registration

Who must register?

Who is required to Register 589.400-425; Offenses Requiring Registration 589.400

What information must registrants provide?

589.407. Registration, required information

Registrants need to know that “online identifiers” is interpreted to include IP addresses. This means that technically, any person who uses a dynamic IP address is committing a felony if they do not list each and every IP address ever assigned to them. 589.407 lists online identifiers as required information for registration.

43.651(4) defines “online identifier,” and it includes “all…other identity information.”

The Jackson County sheriff's office specifically states that this includes IP addresses.

How frequently must they register? And for how long?

Does the state categorize registrants by levels/tiers?

Yes. The tiers are: Tier I, Tier II, and Tier III.

Does the state use risk assessment when assigning tiers or levels to registrants?


Do any registrants remain privately registered? If so, who?

Is there a registration fee?


Are there special restrictions for registrants even after supervision?

Is there a process for removal from the registry? If so, who qualifies and what is the process?

589.400, 7and 8. For just a few offenses: Committing or expiring to commit promoting prostitution 2nd & 3rd degree, public display of explicit sexual material, and statutory rape 2nd degree. Also for youthful offenders (see Romeo & Juliet below).

What is the registration requirement for someone with a sexual offense who is visiting the state?

If Must register if in state more than 7 days in a year 589.400 1.(8)>

What is the registration requirement for someone with a sexual offense who will be moving to the state to live or to attend school?

State Laws Regarding Sexual Offenses and Offenders, other than registration

What sexual offenses can people be convicted of, and what are the ranges of sentences?

Does the state have lifetime supervision?

Yes, based solely on conviction.
559.106 For those sentenced to probation alone
217.735 For those sentenced to imprisonment

Does the state have indeterminate sentencing?


What are the state civil commitment laws?

MO. REV. STAT. §§ 632.480-.513
Specifically 632.484
SMMCHC Missouri Sex Offender Rehabilitation and Treatment Services

Are there “Romeo and Juliet” laws or other laws specific to young people?

566.034 says person must be 21 or older to be charged with stat rape 2

Info for State Advocates

Are felons allowed to vote? If so, when is this right restored?

What does the state say about persons who are required to register?

How does the state’s legislative process work?

Missouri General Assembly Legislative Branch

How a bill becomes law

Track a bill

Missouri Revised Statutes

Or use Legiscan

How can I locate legislation regarding sexual offense issues?

Best keywords are:

Sexual crime; sex offender; sex offender registry

How to sign up for notifications of bill movement:

Most important legislative committees for our issues are:

Contact info for state legislators can be found at:

Find your legislator (click on pic for contact info):
House of Representatives

Other Useful State Information

Contact information for state registry office

NARSOL state affiliate website or blog:

None at present.

Other helpful state advocacy groups:

Response needed.

Other registrant-friendly state support groups:

Response needed.

Other helpful information

missouri.txt · Last modified: 2022/11/27 17:13 by rkdbus