You're confused about what PRIA is, and how you might use or benefit from it.
You don't request your employer to provide PRIA records to you. When you're hired, you may elect to have copies provided to you of PRIA paperwork returned by former employers.
If you've been with your employer for the past five years, then all you need to do is have your training record from your current employer, and that's not a "PRIAj" request. If you're smart, you'll always maintain your own file with copies of your records, with every development that takes place during your time with any employer. You should always have a current set of your own records. Everyone should.
You should have records from all former employers.
Ever been fired or forced to resign? What will your former employers say about you? Keep all your documentation, whether it was a year ago or twenty.
You can obtain a criminal history either through your state bureau of criminal investigation, or by going through your local city, county, or parish law enforcement agency. There is usually a nominal fee. You'll want a criminal history background check ("triple I") and a wants check. If you've never been arrested, then it's really superfluous.
Many employers do credit checks; you should know your credit and should have a knowledge of what's in all three of your reports.
PRIA covers a five year period. Many employers do a 7 year or 10 year history. PRIA also only covers previous 121, 125 or 135 operators; other operators such as Part 91, 137, etc, aren't obligated to respond to PRIA requests, or to maintain the records applicable to that program.