| 2015 Commercial Mechanical Inspector | $868.89 |
| F29 National Standard Master Mechanical Questions Workbook | $491.94 |
| 2012 Residential Electrical Inspector | $384.95 |
| W32 National Standard Residential Mechanical Exam Workbook | $461.94 |
| W25 National Standard Journeyman Plumber Practice Questions Work | $5,158.33 |
| F13 National Standard Residential Building Contractor (C) 2015 | $2,024.75 |
| F32 National Standard Residential Mechanical Exam Workbook | $4,542.41 |
| 2018 Residential Plumbing Inspector | $461.94 |
| 2018 Residential Building Inspector | $5,081.34 |
| 2021 Commercial Plumbing Inspector | $434.95 |
| W18 National Standard Residential Electrician Workbook ICC Exam | $3,080.61 |
| 2012 Residential Building Inspector | $2,617.66 |
| 2015 Residential Plumbing Inspector | $4,465.42 |
| 2012 Residential Plumbing Inspector | $2,232.71 |
| G16 National Standard Master Electrician Workbook ICC Exam 2018 | $1,311.84 |
| W16 National Standard Master Electrician Workbook ICC Exam | $1,816.77 |
| F12 National Standard General Building Contractor (B) 2015 | $1,679.80 |
| 66 Fire Inspector I 2012 | $710.91 |
| F17 National Standard Journeyman Electrician Questions Workbook | $2,348.71 |
| 67 Fire Inspector II 2012 | $1,816.77 |
| F25 National Standard Journeyman Plumber Practice Questions Work | $1,077.86 |
| F11 National Standard General Contractor (A) 2015 | $2,053.74 |
| W31 National Standard Journeyman Mechanical Questions Workbook | $1,077.86 |
| 2018 Commercial Plumbing Inspector | $2,261.74 |
| 67 Fire Inspector II 2018 | $1,026.87 |
| 2012 Commercial Mechanical Inspector | $78.99 |
| 2018 Commercial Electrical Inspector | $1,421.82 |
| G12 Building Contractor (B) 2018 | $782.91 |
| 67 Fire Inspector II 2015 | $552.93 |
| 2015 Residential Mechanical Inspector | $461.94 |
| W11 National Standard General Contractor (A) | $384.95 |
| 2018 Residential Electrical Inspector | $769.90 |
| G17 National Standard Journeyman Electrician Questions Workbook | $327.96 |
| G29 National Standard Master Mechanical Questions Workbook | $81.99 |
| 2012 Commercial Plumbing Inspector | $1,065.87 |
| 2012 Commercial Electrical Inspector | $473.94 |
| 2021 Commercial Mechanical Inspector | $81.99 |
| G25 Journeyman Plumber Practice Questions Workbook 2018 | $81.99 |
| 2018 Commercial Mechanical Inspector | $78.99 |
| 2015 Residential Electrical Inspector | $76.99 |
| 2018 Residential Mechanical Inspector | $76.99 |