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Field Sample Management Standard Operating Procedure SWE-FSOP-002;Revision 1 Ahtna Southwest Environmental Operations 1.4 Definitions Air or Ground Waybill. A shipping document that identifies the sender and addressee, transport carrier, size, and priority of a shipment transported by aircraft. Chain of Custody. In legal contexts, is the chronological documentation or paper trail that records the sequence of custody, control, transfer, analysis, and disposition of materials, including physical or electronic evidence. Dangerous Goods. Under the International Air Transport Association (IATA) definition, dangerous goods are articles or substances that can pose a hazard to health, safety, property, or the environment and are shown in the list of dangerous goods in the IATA regulations (IATA 1.0). Environmental sample. According to the Department of Transportation (DOT) 49 Code of Federal Regulations(CFR)Section 172.101 Appendix A, any sample that has less than reportable quantities of any hazardous constituents. Excepted Quantity(DOT&IATA Definition).A hazardous substance whose class is permitted on passenger aircraft but in such a small defined amount poses a low risk during transport by aircraft. Hazardous substances that meet the definition of Excepted Quantity may be exempted from documentation, packaging, marking, and labeling requirements typically required when presenting hazardous materials for passenger air transportation. Items shipped as excepted quantities are limited to volumes as specified in IATA Dangerous Goods Regulations,Table 2.6.A and DOT 49 CFR 173.4a. Hazardous materials. DOT defines a hazardous material as any item or chemical which, when being transported or moved in commerce, is a risk to public safety or the environment and is regulated as such under its Pipeline and Hazardous Materials Safety Administration regulations (49 CFR 100-199), which includes the Hazardous Materials Regulations (49 CFR 171-180). Sample label. An adhesive paper placed on sample containers or a tag tied to a sample container to designate a sample identification number and other identifying information. 2.0 Relevant Documents This SOP is intended to be used in conjunction with the following SOPs, and as such, the equipment and materials needed for those activities are not included in this SOP: Standard Operating Procedures • SWE-FSOP-001, Field Documentation • SWE-FSOP-400 Series,various sampling SOPS Field Forms • SWE-FFRM-004, Daily PFAS Sampling Checklist • SWE-FFRM-002, Chain of Custody Page 5 of 12