If, after inspection, an amusement ride or amusement attraction is found to comply with the rules of the division, the division shall issue a permit to operate. The permit shall be in the form of a certificate of inspection and shall be kept in the records of any operator or owner for a three-year period and shall be readily accessible to the public for inspection at any reasonable time at the carnival, fair or event where the amusement ride or attraction is located. A copy of the certificate, showing the last date of inspection, shall be affixed to the amusement ride or amusement attraction upon issuance: Provided, That the division shall take final action upon all completed permit applications within thirty days of receipt if the application is uncontested, or within ninety days if the application is contested.