Westside Regional Center
Vendor Audits & Reviews
Independent CPA audits and reviews under WIC §4652.5 for Westside vendors across Los Angeles County.
Westside Regional Center, headquartered in El Segundo, serves the westside of Los Angeles County — Culver City, Santa Monica, Inglewood, and the surrounding communities. If your organization receives $500,000 or more in Westside funding across the State fiscal year, WIC §4652.5 requires an independent CPA review or audit, filed with the center within the statutory deadlines.
Do you need a review or an audit?
It depends on how much Westside Regional Center funding you receive — not your total revenue from all sources — measured across the State fiscal year (July 1 – June 30):
If you are vendored with more than one regional center, your funding is aggregated across all of them to determine your level. See the full review-vs-audit comparison for what each engagement involves.
Vendors we work with in El Segundo and beyond
The westside's defining pressure is cost. Program space in Culver City or Santa Monica rents at some of the highest commercial rates in Southern California, and wages must compete with the area's labor market — which puts constant pressure on the 85/15 program-spending test for Westside vendors. The provider base here leans toward supported and independent living agencies, day programs, employment services, and ABA providers rather than large residential campuses. In engagements for westside vendors, the classification questions that matter most are about space and shared staff: rent for a program site where services are delivered is a program cost, an administrative office is not, and premises that serve both need a documented allocation. Getting those right is usually the difference between a clean 85/15 presentation and a strained one.
Your deadline
Your independent report is due within nine months of your fiscal year-end, and the report plus any management letter must reach Westside Regional Center within 30 days of when your CPA issues it. There are no extensions under the statute. Calendar-year vendors (fiscal year-end December 31) have a September 30 deadline the following year — use our deadline calculator to map yours.
Where you submit: Westside Regional Center
Headquarters: El Segundo, California
Service area: West Los Angeles County, including Culver City, Inglewood, and Santa Monica
Main phone: (310) 258-4000
Official website: westsiderc.org
Vendored with Westside? Let's talk.
We'll confirm whether you need a review or an audit and quote a fixed fee.
Request a Free Quoteor call (415) 916-7010
Frequently asked questions
← All covered Regional Centers · Full WIC §4652.5 guide
This page is general information about California Regional Center vendor audit requirements and is not legal or accounting advice for your specific situation. Contact center details are provided for vendor convenience and are subject to change; verify directly with the center.