11.3.4 Responding - Modification

Chapter Federal Authority
IntergovernmentalSocial Security Act
§452(a)(11) Duties of the Secretary
§454 (9) and (20) State plan for child and spousal support
§466(f) and (d) Requirement of statutorily prescribed procedures to improve effectiveness of child support enforcement
45 CFR 302.36 Provision of services in intergovernmental and intergovernmental IV-D cases
45 CFR 303.7 Provision of services in intergovernmental IV-D cases
Subject State Authority
Responding – Modification Wyo. Stat. § 20-4-155 Duties and powers of responding tribunal
Wyo. Stat. § 20-4-157 Duties of support enforcement agency
Wyo. Stat. § 20-4-176 Choice of law
Wyo. Stat. § 20-4-181 Procedure to register child support order of another state for modification
Wyo. Stat. § 20-4-182 Effect of registration for modification
Wyo. Stat. § 20-4-183 Modification of child support order of another state
Wyo. Stat. § 20-4-184 Recognition of order modified in another state
Wyo. Stat. § 20-4-193 Jurisdiction to modify child support order of another state when individual parties reside in this state
Wyo. Stat. § 20-4-194 Notice to issuing tribunal of modification
Wyoming Child Support Enforcement Rules
Chapter 4 General Services
Chapter 16 Services in Intergovernmental Cases
Policy Number Effective Date
11.3.4 July 1, 2015


One of the major components of the Uniform StateFamily Support Act (UIFSA) is the “one order” principle.  Basically, only one order for child support may be in effect at one time.  In order to modify a child support order, a tribunal shall have continuing, exclusive jurisdiction (CEJ) as described in Appendix 11.B – Continuing Exclusive Jurisdiction.


When a District CSE Office receives a request from another state to modify a child support order, there are 3 possible alternatives for modification based upon the situation:

1) Modifying a Wyoming order;

2) Registering and modifying another state’s order; or

3) Registering multiple orders for a determination of controlling order, arrears calculation, and modification of the controlling order.

Wyoming Order

If the Initiating State requests modification of a Wyoming order, the case worker will: 

Another State’s Order

If the request from the Initiating State is to register and modify another state’s order, the case worker will:

Multiple Orders

If the request from the Initiating State is to register multiple orders and request a determination of controlling order prior to modification , the case worker shall:

Cross Reference

Version Number Last Revised Date
I2 July 1, 2015