Important Note: Beginning June 1, 2024, only the current edition will be accepted for credit. Refinements purchased on or after June 1, 2024, will also be subject to a 90-day expiration policy. The completed Refinement answer sheet must be post-marked within 90 days of the purchase date to be accepted for credit.

Important Note: Beginning June 1, 2024, only the current edition will be accepted for credit. Refinements purchased on or after June 1, 2024, will also be subject to a 90-day expiration policy. The completed Refinement answer sheet must be post-marked within 90 days of the purchase date to be accepted for credit.

Important Note: Beginning June 1, 2024, only the current edition will be accepted for credit. Refinements purchased on or after June 1, 2024, will also be subject to a 90-day expiration policy. The completed Refinement answer sheet must be post-marked within 90 days of the purchase date to be accepted for credit.