In March 2007, the Branch began posting positive audit findings for REC Sites. Audit findings of work performed by RECs and RSMs (Registered Site Managers acting on behalf of the RECs) that were in compliance with the REC Rules are listed below.
| REC | DATE | AUDIT FINDINGS |
| Mid-Atlantic Associates | 12/8/2010 | Audit of REC's certified Phase I remedial investigation work plan - no potential REC Rule violations identified. |
| AMEC Earth & Environmental | 12/2/2010 | Audit of REC's certified remedial investigation work plan and remedial investigation - no potential REC Rule violations identified. |
| Delta Consultants (Antea USA of NC) | 12/2/2010 | Audit of REC's certified Phase I remedial investigation & Phase II remedial investigation work plan - no potential REC Rule violations identified. |
| Apex Companies, LLC | 7/1/2010 | Audit of REC's certified proposed remedial action plan - no potential REC Rule violations identified. |
| GEL Engineering of NC, Inc. | 7/1/2010 | Audit of REC's certified remedial investigation & portions of project file - no potential REC Rule violations identified. |
| Geosyntec Consultants of NC | 5/26/2010 | Audit of REC's certified Phase I remedial investigation report & supplemental work plan - no potential REC rule violations identified. |
| URS Corporation of NC | 5/14/2010 | Audit of REC's certified remedial action progress report - no potential REC Rule violations identified. |
| Marshall Miller & Associates | 5/7/2010 | Audit of REC's certified progress report - no potential REC Rule Violations identified. |
| S & M E | 8/21/2009 | Audit of REC's certified progress report - no potential REC Rule violations identified. |
| Hart & Hickman | 1/26/2009 | Audit of REC's certified progress report - no potential REC Rule violations identified. |
| Solutions - IES | 1/25/2009 | Audit of REC's certified progress report - no potential REC Rule violations identified. |
| Kelly-Buck | 2/23/2007 | Audit of REC's certified remedial investigation work plan and portions of project file - no potential REC Rule violations identified. |