@Zbucklyo You're correct, but you jumped in with a comment while I was writing a more comprehensive answer.
These are so-called 414(h)(2) contributions, unique to state and local governments. They are NOT required to be shown on your W-2, but most employers list them in Box 14 to help tax software (including TurboTax) reconcile the difference between Boxes 1, 3 & 5. You may be asked for this amount when you enter your W-2.
If you made additional contributions to PERA's 401(k) and/or 457 plans, those DO qualify for the Retirement Savings Credit because they're voluntary contributions. Those would appear in Box 12 (a, b, c or d) with a letter code other than DD.
