Implementation Guide - PGA Message Set for Shipments Subject to NHTSA Regulations 1.21 MB. Vehicle Identification Number - VIN 82.68 KB. The following information is provided in accordance with 5 U.S.C. 522a (e) (3) and applies to this form. The information required on this form is required by 49 U.S.C. Chapters 301, 325 and 331.