| CSI Code | Short Description | Extended Description |
| 01600 | Product Requirements |
| 01610 | Basic Product Requirements |
| 01620 | Product Options |
| 01630 | Product Substitution Procedures | Substitution Procedures During Bidding Substitution Procedures During Construction |
| 01640 | Owner-Furnished Products |
| 01650 | Product Delivery Requirements |
| 01660 | Product Storage and Handling Requirements |