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Library: Policy

340:25-1-2.1. Location for information

Revised 9-15-2021

(a) Mailing address.  The Oklahoma Child Support Services (OCSS) state office mailing address is:  Oklahoma Child Support Services, Capitol Station Box 248822, Oklahoma City, Oklahoma 73124-8822.

(b) OCSS telephone information.  District child support office addresses throughout Oklahoma and other information may be requested by telephoning 405-522-2273 in the Oklahoma City calling area, 918-295-3500 in the Tulsa calling area, or toll-free at 1‑800‑522-2922.  The Relay Oklahoma Teletypewriter (TTY) number for the hearing impaired is 711, or 1-800-722-0353 toll-free.  • 1

(c) Interpreter services.  The Oklahoma Department of Human Services (OKDHS) provides at no cost, oral or sign language or foreign language interpretation services.  • 2

(d) Oklahoma Employer Services Center.  The Oklahoma Employer Services Center (OKESC) processes incoming employer questionnaires regarding employment verification and insurance availability, and answers employer questions regarding new hire reporting, income withholding, and medical support.  Employer and insurance plan administrator inquiries regarding child support cases may be made by telephoning 405‑325-9190 in the Oklahoma City calling area, or toll-free at 1-866-553-2368.  The OKESC fax number is 405 325-8210 and the mailing address is:  Oklahoma Employer Services Center, PO Box 248805, Oklahoma City, Oklahoma 73124-8805.

(e) Internet access.  Information about OCSS is available from the OCSS Internet page at

(1) A customer who has an active child support case(s) and OKDHS customer identification number may use the Internet to access information about the customer's case(s).

(2) A customer may contact OCSS as described in this Section to request a child support customer personal identification number (PIN) and instructions for accessing case information on the Internet.  

Revised 9-15-2021

1. Oklahoma Human Services (OKDHS), Child Support Services (CSS) staff in the Oklahoma City and Tulsa calling areas includes local phone numbers on brochures, legal pleadings, court orders, and correspondence to encourage customers to use the local numbers.  CSS staff encourages customers in the Oklahoma City calling area to use 405-522-2273, customers in the Tulsa area to use 918-295-3500, and customers outside of the Oklahoma City and Tulsa calling areas to use the toll-free phone number 1-800-522-2922.  Hearing impaired customers may use the Relay Oklahoma Teletypewriter (TTY) numbers 711 or 800‑722‑0353.

2. CSS staff contacts the OKDHS Office for Civil Rights for the current contact for hearing impaired interpretation services, per Oklahoma Administrative Code 340:1-11-10.  Information regarding foreign language interpretation services is obtained by contacting the CSS Center for Business Excellence and Customer Service.

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