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If prior approval is not granted the provider will be advised of the reason . All three types of information ( corporate , operational and management ) must have features of quality , accuracy , integrity and reliability , if effective decision making is to take place . If prior approval is granted , a PA number will be provided for billing purposes . State insurance commissioners generally have regulatory authority over the rates charged by insurers , and can take action if unreasonable rates are being charged . Such surfaces , if unclean , can serve as ready reservoirs for product contamination .