The Hawaii state auditor says Aloha Stadium’s managers have failed to consistently enforce rules for swap meet vendors, allowing some of them to operate illegally.

The auditor said in a report today almost one-third of the top 450 vendors avoided filing general excise tax returns in recent years.

The auditor says none of the vendors displayed a general excise tax license as required by law when auditors visited their stalls in 2009.

The stadium is managed by a state agency, the Stadium Authority. It contracts out swap meet management to a company called Centerplate.

The auditor says the stadium manager ignored his responsibilities to ensure Centerplate is managing swap meet operations effectively.

The swap meet accounts for more than two-thirds of the Stadium Authority’s revenues.