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| Main Office10400 Detrick Avenue Kensington, MD 20895-2484 240.627.9400 Hours of operation: M-F, 8:30 a.m. – 5:00 p.m. |
East Deer Park Office231 East Deer Park Drive Gaithersburg, MD 20877 240.627.9400 Hours of operation: M-F, 8:30 a.m. – 5:00 p.m. |
| Derwood Service Center16105 Columbus Avenue, Suite #200 Derwood, MD 20855 240.627.9400 Hours of operation: M-F, 8:30 a.m. – 5:00 p.m. |
Silver Spring Service Center880 Bonifant Street Silver Spring, MD 20910 240.627.9400 Hours of operation: M-F, 8:30 a.m. – 5:00 p.m. |
Agency Delays & Closures
(Including Holidays)
HOC Emergency Telephone Line – 866-557-4792
During inclement weather and other emergencies, call HOC’s Emergency line for the most current information on agency delays and closures.
2025 Holiday Schedule (Agency Closings)
| Wednesday, January 1 | New Year’s Day |
| Monday, January 20 | Martin Luther King, Jr. Day |
| Monday, February 17 | President’s Day |
| Monday, May 26 | Memorial Day |
| Thursday, June 19 | Juneteenth |
| Friday, July 4 | Independence Day |
| Monday, September 1 | Labor Day |
| Tuesday, November 11 | Veterans Day |
| Thursday, November 27 | Thanksgiving Day |
| Friday, November 29 | Day After Thanksgiving Observed |
| Thursday, December 25 | Christmas Day |