Mercury Remains Prohibited in The Mail

WASHINGTON — The Postal Service is reminding customers that metallic mercury and devices containing metallic mercury are always prohibited in the mail stream. This includes antique items such as thermometers, barometers, blood pressure monitors, switches and relays. However, compact fluorescent lamps, which contain small amounts of mercury in vapor form, are mailable domestically but not internationally (including APO/FPO/DPO destinations).