The holder has the responsibility of proving that an electronic funds transfer has taken place. Acceptable proof is the reference number for ACH Debit remitters or a copy of the transfer documentation for ACH Credit remitters.
Cal. Code Regs. Tit. 2, § 1155.550
Note: Authority cited: Sections 1532(a) and 1580, Code of Civil Procedure. Reference: Section 1532, Code of Civil Procedure.