PATH #1 or Path #2 - IDEX ELIGIBILITY, REGISTRATION AND CERTIFICATION APPLICATION FEE For Use By: Individuals applying for Certification under Path #1 or Path #2. This payment includes: Non-refundable Application for Certification; IDEX exam fee; Exam testing center fee Please note: Invoice number is "IDEX - Your Name" Payment of $700.00 is to accompany a completed ‘Application for IDEX Eligibility’ packet.