Toxic materials and infectious substances: insecticides, pesticides, pepper spray, infectious substances, sharps, patient specimens.

Oxidizers and organic peroxides: oxidizing liquids, nitrates, swimming pool chemicals, peroxides.

Flammable solids: matches, signal flares.

Flammable liquids: fuels (gasoline, butane, propane), items that contain or used to contain fuel (lighters, propane cylinders, used gasoline tanks), some paints and inks, furniture varnishes, perfumes.

Gases: aerosols, hairspray, scuba tanks, compressed gas containers, lighters.

Explosives: fireworks, ammunition, fuses, model rocket engines, automobile air bags.If the mailer or addressee does not respond, the mail is considered вЂњabandoned,вЂќ Hernandez said.

вЂњIf the customer can not be reached by phone, a certified letter is mailed, advising them of their options,вЂќ Hernandez explained. вЂњThey may retrieve the item within two days, or they may come to the facility within two days to correct any deficiencies in labeling, markings, packaging, etc.вЂќ вЂњUSPS personnel completes required paperwork and contacts the sender or addressee by phone to advise them of two options,вЂќ United States Postal Service spokesperson Becky Hernandez said. ItвЂ™s your responsibility to make sure anything you mail complies with whatвЂ™s allowed.Д®ach local post office has an area where non-mailable items are detained. When you bring your mail to the post office, employees will ask if there are any liquids, flammable, or hazardous material inside the package. Mail Center managers may want to post these guidelines for their employees.AUSTIN (Nexstar) - Postal workers across America are nearly done processing hundreds of millions of packages nationwide, but what happens to the packages that people try to send containing prohibited materials? For additional information, refer to the Suspicious Mail and Safe Mail Handling fact-sheets from both the USPS and the Department of Homeland Security. The United States Postal Service has increased security procedures at all of their facilities. The United States Postal Inspection Department may be called by HUPD to assist in the investigation and assessment of the level of threat. HUPD Cambridge/Allston Campus вЂ“ 495.1212 Longwood Campus вЂ“ 432.1212 Mail that is inconsistent with the types of mail normally received.Restrictive endorsements such as вЂњPersonalвЂќ, вЂњConfidentialвЂќ or вЂњAddressee OnlyвЂќ.Unusual or unverifiable return addresses.Powders, oily stains, discolorations or strange odors.Incorrect or non-existent departments or position titles.Handwritten or poorly typed addresses, especially those in hand printed block lettering.Suspicious traits include, but are not limited to: Call the Harvard University Police Department and follow their instructions and wait for their arrival.Д«e aware of letters or packages that have suspicious traits.Wash your hands immediately with soap and water.Evacuate the area, close the room and prevent further access.Avoid further handling and isolate item as best possible.obvious contamination or specific written threats: If you identify a suspicious letter or package, e.g. If you encounter a suspicious package or letter, your best protection is your knowledge of the types of mail you normally handle and your awareness of some of the following procedures. Mail handlers who receive mail that they have suspicions about should contact Harvard University Police (5-1212) immediately. Harvard University receives many types of packages and letters each day.

Usps suspicious package