2 General Guidelines

2 General Guidelines

21 Mailability

211 General

212 Mailer Responsibility

213 Authority of Postmasters

214 Appeals

215 Requests for Rulings

215.1 General

215.2 Hazardous Materials

215.3 Restricted Matter or Perishable Matter

216 Nonmailable Matter Found in the Mail

22 Marking Requirements

221 General

221.1 Address Side of Mailpiece

221.2 Ancillary Endorsements

221.3 Barcodes

222 Other Postal Service Labels and Tags

223 Orientation Markings for Packages and Containing Liquids

224 Old Markings

23 Handling Hazardous, Restricted, and Perishable Materials

231 General

232 Nonmailable Hazardous Materials Found in the Mailstream

24 Emergency Procedures

241 General Requirements

242 Harmful Matter Exposure

243 Precautions

244 Incident Response Procedures

245 Hazardous Chemical Emergencies

246 Emergency Telephone Numbers

25 Basic Guidelines for Postal Service Personnel

251 Guidelines for Acceptance Personnel

252 Guidelines for Dispatch Personnel

253 Guidelines for Delivery and Collection Personnel