Source: https://waste.zendesk.com/hc/en-us/articles/211678888-A-U-S-laboratory-imports-a-sample-of-a-hazardous-waste-from-a-foreign-country-in-order-to-determine-the-optimal-methods-of-treatment-Is-the-laboratory-subject-to-the-import-requirements-in-Part-262-Subpart-F-
Timestamp: 2019-04-25 05:47:22+00:00

Document:
If the laboratory complies with the applicable treatability study requirements in §261.4(e), and the laboratory requirements in §261.4(f), it is not subject to the importing requirements in Part 262, Subpart F. Under the import regulations in §262.60, a facility in the U.S. that imports hazardous waste must comply with the manifest requirements for generators listed in §262.20. But persons who generate or collect samples for the purpose of conducting treatability studies, as defined in §260.10, are not subject to any requirement of Parts 261 through 263 or to the notification requirements in RCRA §3010. Nor are such samples included in the quantity determinations for generators. This exlusion generally extends to waste samples that originate outside of the United States. Before importing any such treatibility sample, however, the importer should first contact the State agency, since State regulations can be more stringent than federal regulations. In addition, the importer should contact the country of origin to determine whether it considers the export of such a treatability sample for testing to be allowable since there are several international waste agreements that could apply.

References: §261
 §261
 §262
 §262
 §260
 §3010