| 2015 Commercial Plumbing Inspector | $81.99 |
| F13 National Standard Residential Building Contractor (C) 2015 | $80.99 |
| 2018 Residential Building Inspector | $76.99 |
| W29 National Standard Master Mechanical Questions Workbook | $78.99 |
| 2012 Commercial Plumbing Inspector | $81.99 |
| G13 Building Contractor (C) 2018 | $76.99 |
| 2015 Commercial Mechanical Inspector | $78.99 |