Beginning tomorrow, Thursday, April 18 and continuing periodically through approximately May 17, 2024, renovation work on the interior of Building 45 (P1as 14A) will include explosive powder-actuated tools (EPATs).

When in operation, EPATs can sound like a gunshot, firearm or explosive discharging. Please do not be alarmed or confused if you work in or near Building 45 and hear this noise. Use of EPATs is a common practice in building construction.

If you work in or near these buildings, please ensure your colleagues are aware so no one is unnecessarily alarmed.

Thank you for your understanding and cooperation as NIH continues with this important renovation of Building 45. For questions regarding this message, please contact the Office of Research Facilities (ORF) project officer, Gary Aldred at 301-875-2464. ​