Trans 143.07(1)(i)(i) Copies of follow up letters (or summaries of relevant and material portions of follow-up telephone calls) to both parties, and responses thereto; and Trans 143.07(1)(j)(j) Any other documents and communications (or summaries of relevant and material portions of oral communications) relating to the dispute. Trans 143.07(2)(2) The certified mechanism shall submit an annual report to the department. The report shall include, but not be limited to, the following: Trans 143.07(2)(a)(a) Statistics which show the number and percent of disputes in each of the following categories: Trans 143.07(2)(a)2.2. Motor vehicles, by vehicle make and vehicle identification number, determined to be nonconforming; Trans 143.07(2)(a)4.4. Disputes resolved by awarding a financial refund to the consumer or the holder of a perfected security interest; Trans 143.07(2)(f)(f) The general qualifications of persons the certified mechanism utilizes as decision makers; Trans 143.07(2)(g)(g) The vehicle makes and models for which the certified mechanism is authorized to hear disputes; Trans 143.07(2)(h)(h) A statement certifying that the certified mechanism will continue to apply and abide by the requirements of s. 218.0171, Stats. Trans 143.07(3)(3) The certified mechanism shall retain all records specified in subs. (1) and (2) for at least 4 years after final disposition of the dispute. Trans 143.07 HistoryHistory: Cr. Register, July, 1988, No. 391, eff. 8-1-88; corrections in (2) (b), (c), (h) made under s. 13.92 (4) (b) 7., Stats., Register March 2012 No. 675. Trans 143.08(1)(1) Pursuant to s. 218.0171 (4) (d), Stats., the certified mechanism shall submit an annual independent audit at the certified mechanism’s expense to the department which shall include at a minimum the following: Trans 143.08(1)(c)(c) An analysis of a random sample of disputes handled by the certified mechanism during the period of time subject to the audit to determine the certified mechanism’s compliance with the provisions of this chapter.