Can a replacement NCCER instructure sign off on a certification if he was not your instructure?

Yes, a replacement NCCER instructor can sign off on a certification as long as they are officially recognized and qualified by NCCER. The new instructor must have the appropriate credentials and access to the necessary documentation to verify the trainee's skills and completion of the required tasks. However, it is important that the replacement instructor is familiar with the curriculum and the trainee's performance to ensure accurate assessments.