{"identifier":"/us/usc/t42/s18646","versions":[{"content_hash":"8922cb22da8922417b6db570285e17055c219c0b967a879c4834c73af5519613","first_seen":{"label":"115-253not232","currency_date":"2018-10-03","congress":115,"law_num":253,"excluded_laws":[232],"update_num":null,"seq":155,"is_partial":true,"caveat":"Current through Public Law 115-253 (10/03/2018), except 115-232.","titles_affected":["01","10","15","16","18","20","26","29","30","31","38","41","42","48","50"],"ingested_titles":[]},"releases":["115-253not232","115-269not232not254","115-269not254","115-273not254not271","115-324not254not282","115-333not254not282","115-384not282not334","115-419not334","115-442not334","115-442","116-8not6","116-10","116-16"],"num":"§ 18646.","heading":"Isotope development and production for research applications","status":null},{"content_hash":"8529416dacd273992dded7d7ff9a1a85a174a20af5746db53b5667e66316ea94","first_seen":{"label":"116-19","currency_date":"2019-05-31","congress":116,"law_num":19,"excluded_laws":[],"update_num":null,"seq":174,"is_partial":false,"caveat":null,"titles_affected":["25","42"],"ingested_titles":[]},"releases":["116-19","116-20","116-29","116-56","116-59","116-63","116-68","116-72","116-108not92not94","116-108not92","116-108","116-130not113","116-135not113","116-138not113","116-139","116-140u1","116-147","116-148","116-151","116-158","116-163","116-182","116-193","116-216","116-252","116-282not260","116-314not260not283","116-344not260not283not315","116-344not260not283","116-344not283","116-344","117-17not1not2","117-24","117-39","117-44","117-70not58","117-71not58","117-79not58","117-80","117-81","117-102","117-107not103","117-108not103","117-114","117-129","117-139","117-145","117-159"],"num":"§ 18646.","heading":"Isotope development and production for research applications","status":null},{"content_hash":"a08dde853d872724af3283c3ded4bbd6a5983182228262ed2a5cb6da2c7275b2","first_seen":{"label":"117-174not169","currency_date":"2022-08-26","congress":117,"law_num":174,"excluded_laws":[169],"update_num":null,"seq":283,"is_partial":true,"caveat":"Current through Public Law 117-174 (08/26/2022), except 117-169.","titles_affected":["02","06","15","26","33","34","38","40","41","42","44","47","51"],"ingested_titles":[]},"releases":["117-174not169","117-174"],"num":"§ 18646.","heading":"Nuclear physics","status":null},{"content_hash":"438422bb81ecd502fca426673f01d97cbf64996ed484a98240eb0815376d4d97","first_seen":{"label":"117-185","currency_date":"2022-10-04","congress":117,"law_num":185,"excluded_laws":[],"update_num":null,"seq":286,"is_partial":false,"caveat":null,"titles_affected":["03","10","13","15","18","21","22","38","42","47","52"],"ingested_titles":[]},"releases":["117-185","117-200","117-214","117-224","117-234","117-262","117-327not263not286","117-327not263","117-338not263not328","117-362not263not328","118-3not328","118-3","118-5","118-14","118-16","118-22","118-34","118-39","118-41","118-44not42","118-44","118-47","118-62","118-64","118-66","118-70","118-90","118-105","118-107","118-136","118-145","118-150","118-157","118-158","118-209not159","118-233not159","118-271not159","118-274not159","119-1","119-4","119-26not21","119-31","119-43","119-46","119-69not60","119-72not60","119-73","119-83"],"num":"§ 18646.","heading":"Nuclear physics","status":null}]}