Iowa Admin. Code r. 571-114.6
An applicant must successfully pass a written test with a minimum test score of 80 percent before an NWCO permit will be issued. If the applicant fails the written test, the applicant must wait 45 days before retaking the test. If the applicant fails the written test a second time, the applicant must wait 180 days before reapplying. A $25 testing fee will be assessed when the applicant successfully completes the test. In addition, the applicant must successfully complete an oral, in-person interview with a representative of the department to determine the applicant's knowledge of wildlife and wildlife capture techniques, and to determine if the applicant has the ability to provide effective services to the public.
Iowa Admin. Code r. 571-114.6