NC H-1 Exam Prep Student Manual-Study Guide is included in course fee and shipped via USPS within 24 hours, tracking information will be emailed. We’ll cover the NC Code-based business and technical test questions and testing techniques, residential and commercial load estimating and duct design. Remember, you must have your personal copies of the exam reference books for class and for your PSI exam. A complete set of the codebooks required for your license exam are sold in our contractor bookstore for $1,495.00. Call the TTI Contractor Bookstore for assistance (919) 805-9900 Class time: 7:00 am – 5:00 pm daily GoToMeeting Links to join your prep class are emailed 3 days prior to class date Contact your course administrator at 919-805-9900 if you don’t receive a confirmation email with USPS tracking.