225 ILCS 710/47.01

All examinations given by the Department of Natural Resources to any applicant for a license or certificate of competency shall be conducted in the English language, shall be of a practical nature, and shall be conducted under published rules, conditions and regulations which are uniform as to all applicants for the same type of license or certificate, and which have been made available upon request to any applicant prior to the date of examination. The Department of Natural Resources shall preserve a record of all questions propounded and the answers given thereto. Such record shall be preserved for a period of six months following the date the notice of the granting or refusal of the license or certificate is served upon the applicant, and duly certified copies thereof shall be furnished to the applicant upon request being made within such six months period and upon the payment of the cost thereof. Any applicant who fails to pass an examination shall be permitted to take another examination after an interval of three months.