Your personal information is held by Mainstream Engineering Corporation ONLY. We will not share ANY of your information with third parties or other vendors; it is strictly for record keeping purposes. We will not use your information for any marketing material unless you have indicated you would like to receive email updates, and you have the option of removing yourself from this list at any time. Your privacy is very important to us. Failure to use your correct social security number could result in the loss of your certification(s) without a refund.