Enforced Withdrawal Certificates
| Certificate# | Laboratory | Contact | City, State | Phone | Fax | Effective Date | Field of Testing |
| 2766.01 | Elemental Research, LLC | Brian Kiser | Harrisburg, PA | 717-540-0212 | 717-540-0612 | 06/25/2010 | Chemical |
| 336.01 | Gibraltar Industries | James Tross | Cheektowaga, NY | 716 684 1020 | 716 684 8495 | 07/27/2010 | Mechanical |
| 1725.01 | Wrought Washer Manufacturing Inc. - QA Lab | Paul Schaefer | Milwaukee, WI | 414 747 8343 | 414 744 4811 | 04/08/2010 | Mechanical |
