SPADA Draft Documents

and Critical Zone Observatories a All websites accessed 15-Apr-2019. 500 b USDA NRCS = U.S. Department of Agriculture Natural Resources Conservation Service

501 502 503 504

9.2 Standard Reference Material Resource 505 Reference Materials (SRMs), which are well-characterized materials that meet NIST- 506 specific certification criteria and are issued with a certificate of analysis. Several soil, 507 sludge and sediment SRMs are currently available for purchase: https://www- 508 s.nist.gov/srmors/detail.cfm?searchstring=soil (accessed 15-Apr-2019) . Product listings 509 are subject to change. Alternate commercial sources of SRMs may be available. 513 Regulations and permits are under the purview of the US Department of Agriculture 514 (USDA) Animal and Plant Health Inspection Service (APHIS). Visit the APHIS website 515 for more information on shipping and receiving soil: 516 https://www.aphis.usda.gov/aphis/ourfocus/planthealth/import- 517 information/permits/regulated-organism-and-soil- 518 permits/sa_soil/ct_regulated_organism_soil_permits_home (accessed 15-Apr-2019). 519 Additionally, the International Air Transport Association (IATA) publishes the 520 Dangerous Goods Regulations for air cargo: 521 The National Institute of Standards and Technology (NIST) is a source of Standard 510 511 512 9.3 Shipping and Disposal Resources Shipping regulations are in place to prevent the spread of invasive species.

Draft Version 16

25