North Bay Regional Center Napa | Solano County Office 610 Airpark Rd. Napa, CA 94558 Telephone (707) 256-1100 Fax (707) 256-1177 TDD (707) 257-0213 Sonoma County Office 2351 Mendocino Avenue Santa Rosa, CA 95403 Telephone (707) 569-2000 Fax (707) 542-9727 TDD (707) 525-1239 Special Incident Reports: SIR Procedures