Kim, we had our yard NWF certified about 10 years ago. I dont remember exactly, but the fee was less than $50. It came with paper documentation and a metal sign. We posted the metal sign on the gate in our suburban backyard to raise awareness and to show that it doesnt take much effort to help wildlife. The girl scout troups and some teachers in the local elementary come here to bring caterpillars (and sometimes tadpoles) back to their class or home.
NWF sends me some emails but have never been intrusive.
