Our holding company has chartered a new Thrift. What are the CRA public file requirements for a thrift and do we include any info on the national bank the holding company also owns, in the Thrift CRA Public File?

This is a rather basic question but if you are new to the game very important and I would strongly recommend that you download the Big Orange Book from Kirchman. It is probably the most easily understood and complete CRA manual available.
The key to CRA is to keep good records and to make sure that your loan officers understand the CRA regs and follow them- it will save you from taking a lot of asprin when the regulators come knocking.
Also, talk with them, they are really not out to hang anybody.
Good luck!