; or (II) the availability of crypto asset-related services; and (ii) is widely available to the general public, as specified by rule of the Commissions; and (B) includes any script, slide, handout, or other written (including electronic) material used in connection with a public appearance with respect to a crypto asset or the availability of crypto asset-related services. (b) Approval by officer Before a crypto asset intermediary may make a covered advertisement available to the public, an officer of the crypto asset intermediary shall be required to approve that covered advertisement and certify compliance with the requirements of this section. (c) Procedures (1) In general Each crypto asset intermediary shall establish written procedures, which are appropriate and reasonable to the business, size, structure, and customers of the crypto asset intermediary, for the approval of covered advertisements, as required under subsection (b), which shall include— (A) provisions for the education and training of applicable employees of the crypto asset intermediary regarding the procedures of the crypto asset intermediary governing covered advertisements; (B) documentation of the education and training required under subparagraph (A); and (C) surveillance and follow-up measures to ensure that the crypto asset intermediary implements and adheres to those procedures. (2) Recordkeeping (A) Period of maintenance Each crypto asset intermediary shall maintain the records required under this subsection for not less than 5 years. (B) Types of records The types of records that a crypto asset intermediary is required to maintain under subparagraph (A) include, with respect to each covered advertisement made by the crypto asset intermediary— (i) a copy of the covered advertisement; (ii) the dates of the first and, if applicable, last use of the covered advertisement