In article ,
wrote:

I am sorry to demonstrate my ignorance, but what are the "TERPS"

The United States Standards for Terminal Instrument Procedures.
iow, the FAA rules for creating airways, routes, and approaches.

and where might I find them?

I don't have a link handy, but you can search www.faa.gov. Note
that you can't find all of the FAA regs/orders for the TERPS in one
document or one place, the main document likely be all that you'd
want to see.

--
Bob Noel