Timing of DB plan contributions: annual or quarterly?

[Guest siredwardcoke]

I'm wondering if anyone has had experience with the quarterly pension funding requirement under the Service Contract Act?

If an employer contracts with the U.S. government to provide services, the SCA regs (29 CFR 4.175) require that pension funding be quarterly or more often. How does that work on a practical basis when you have a DB plan with an annual valuation?

Any real world experiences out there would be welcome.