The treasurer of a campaign finance entity shall keep a detailed and accurate account book of all assets received, expenditures made, and obligations incurred by or on behalf of the entity. Except as provided in § 13–240 of this subtitle, as to each asset received or expenditure made, the account book shall state: its amount or value; the date of the receipt or expenditure; the name and address of the person from whom the asset was received or to whom the expenditure was made; and a description of the asset received or the purpose for which the expenditure was made. To the extent practicable, the treasurer of a campaign finance entity shall record the occupation and employer of an individual who makes contributions to the campaign finance entity in a cumulative amount of $500 or more during an election cycle. The State Board shall: promptly provide notice to the treasurer of a campaign finance entity if a contributor included on a campaign finance report submitted by the treasurer has made contributions to the campaign finance entity in a cumulative amount of $500 or more during the election cycle; and require a standard response that a treasurer shall include in the campaign finance report if a contributor does not supply the information required concerning the contributor’s occupation and employer. Each expenditure made from a campaign account shall be supported by a receipt. The account books and related records of a campaign finance entity shall be preserved until the earlier of: 10 years after the creation of an account book entry or related record; or 2 years after the campaign finance entity files a final campaign finance report under Subtitle 3 of this title. A candidate for election to the central committee of a political party who is exempt under § 13–202(a) of this subtitle shall: keep a detailed and accurate account book of all expenditures made by the candidate; and preserve the account book required under item (1) of this subsection for auditing purposes until 2 years after the end of the election cycle.