Three state audits of the Whatcom Transportation Authority for 2011 came up clean.

The state Auditor's Office reported no findings in its financial, federal-program and accountability audits of the transit agency. All audits of WTA have been clean for the past 15 years, WTA and Auditor's Office officials said.

The federal-program audit checks whether agencies are following rules associated with federal grants and contracts. The accountability audit looks for violations of state law and agencies' own rules in the areas of public access and accounting that are at highest risk of being out of compliance.

WTA had a $25 million operating budget in 2011, with $2.9 million in federal support. Most of the agency's revenues - almost $19 million - came from a countywide sales tax.

Reach RALPH SCHWARTZ at ralph.schwartz@bellinghamherald.com or call 715-2298.