How does one prepare for a career as an appraiser?

What kind of licensing/certification is required?

What standards guide the work of an appraiser?

Do they belong to organizations similar to the National Board of Realtors that govern their practice, ethics, etc.? (Be sure to answer this question with respect to rules and regulations in the state you live or plan to live.)

250 word minimum, USE THE ATTACHED REFERENCES AS WELL AS OTHER REFERENCES to answer the questions, cite in APA.