April 20, 2023 ah, US pawngkam kilvennak zung (EPA) nih methylene chloride chuahnak, thlennak le chawlehnak caah phawtzamhnak fakpi in khamnak phunglam a chuahpi. EPA nih a nawlngeihnak cu Toxic Substances Control Act (TSCA) Section 6(a) tangah a hman, mah nih cun agency cu chemical cung ah cu bantuk khamnak tuah khawhnak nawl a pek. A ruang um lomi hliamhma asiloah thil sining ttihnung. Methylene chloride cu a tlangpi in adhesives le sealants, mawtaw thilri, le rong le coating hlohnak ah thlennak ah hman a si, cun mawtaw, sii, le chemical tibantuk riantuannak hna cu hi phunglam nih a hnorsuan khawh hna.
EPA ruahnak cheuhnak nih methylene chloride hmannak kha riantuannak le chawlehnak hmannak tam deuh ah kham dingin a ti. Ruahnak cheuhnak ah hin luatnak aa tel, a bik in ram himnak le a biapi tukmi thilri hna rawhralnak fakpi hrial khawhnak ding caah ramchung vanlawng riantuannak ah hmanmi rong le rong hna kha kum 10 chung hloh ding a si. EPA nih hi thleidannak hi NASA nih a biapi tukmi asiloah a biapi tukmi thil sining cheukhat tangah dichloromethane hmannak ah thiamnak le sipuazi lei in a him deuhmi lam dang a um lomi emergency hmannak tiang zong a kauhter.
Agency nih a chuahpimi ruahnak cheuhnak nih hin hydrofluorocarbon-32 (HFC-32) chuah khawhnak ding caah dichloromethane hmannak zong a onh lai, mah thilri cu vawleipumpi lumternak a sang deuhmi a ngei tiah an timi HFC dang hna in thlennak caah hman khawh a si, EPA nih HFCs zorternak caah a tuahmi a bawmh. US Innovation and Manufacturing Act of 2020 he aa tlak in. Sihmanhsehlaw, agency nih cun ramchung vanlawng sertu hna, NASA, le HFC-32 hna cu methylene chloride riantuannak hmun chemical kilvennak timhtuahnak zulh dingin a fial hna lai i cu ah cun a herhmi thlennak rikhiahnak le aa pehtlaimi thlennak zohkhenhnak aa tel. thawchuahnak he.
Ruahnak cheuhnak phunglam cu Federal Register ah chuah a si hnu ah, EPA nih rules.gov/docket/EPA-HQ-OPPT-2020-0465 ah ni 60 chung mipi ruahnak cheuhnak a cohlan lai.
Nithumni, May 16, 2023 ah, US Pawngkam Kilvennak Zung (EPA) nih Toxic Substances Control Act (TSCA) hmannak ah EPA phunglam remh ding in an chuahpimi phunglam suaimi an chuah. EPA nih TSCA Chemical Registry a zohkhenh, cu nih cun United States ah chawlehnak ah hman khawhmi chemical vialte a langhter. TSCA tangah, thilchuaktu le ramdang in a luhtermi hna nih luatnak (tahchunhnak ah hlathlainak le tthanchonak) a um lo ahcun chemical thar caah thawngthanhnak an pek a hau. EPA nih chemical thar ser asiloah ramdang in luhpi hlan ah ttihnung zohfelnak a tuah dih a hau. Ruahnak cheuhnak phunglam nih a tu ah EPA nih 2016 TSCA thlennak he aa tlak in thilri pawl cu chawlehnak ah an luh khawh hlanah 100% caah ttihnung zohfelnak a dih a hau asiloah luatnak thawngthanhnak a cohlan a hau tiah a fianter.
April 21, 2023 ah, US Pawngkam Kilvennak Zung (EPA) nih Ram pumpi Plastic Thurhnawmhnak Hrialnak Strategy suaimi a chuah i, cu nih cun thilri chiahnak riantuannak, thil zuartu, plastic sertu, thilri ttha lo zohkhenhnak le hman tthannak hmun hna, tbk., phunglam ningin a ummi zatlangbu hna cungah hnahnawhnak nganpi a chuahpi khawh. Cu suaisam ning ahcun, EPA nih vawlei cung thilri hlonhnak le a dang thilri hlonhnak ding caah timhtuahnak a chuah 2040 tiang pawngkam ah a tanglei tinhmi hna he: plastic sernak ah thurhnawmhnak zorter, hman hnu ah thilri zohkhenhnak tthanchoter, thilri rawhralnak le micro-/nanoplastics pawl ti lam chung luh lonak ding caah kham, le pawngkam chungin a chuakmi thilri hna hloh. Hi tinhmi hna lakah, EPA nih ruahnak cheuhnak tangah a ummi hlathlainak phunphun le phunglam sernak hna kha a langhter. Ruahnak tangah a ummi phunglam tuahsernak hna lakah, EPA nih a tthanchomi thilri hman tthannak hmun hna caah Toxic Substances Control Act tangah phunglam thar a hlathlai cuahmah lio a si tiah a ti. Cun, hi agency nih hin Basel Convention zong fehter dingin a auh hna, cucu United States nih a cohlan nain 1990s ah a fehter lo, plastic thilri hnawm kong he pehtlai in vawleicung buainak tawlrelnak lam dang pakhat a si.
November 16, 2022 ah, US pawngkam kilvennak zung (EPA) nih a tu lio Toxic Substances and Control Act (TSCA) man karhter ding in ruahnak a chuah, cu chung ah cheukhat cu a let hnih in a karh lai. Hi Phunglam sernak kong thawngthanhnak chapmi nih EPA ruahnak cheuhnak kha a remh, January 11, 2021 thawk in, TSCA man kha a bik in thil man kai ning remh awkah karhter ding. TSCA nih EPA cu TSCA Section 4, 5, 6 le 14 ningin agency cawlcanghnak caah thilchuaktu (ramdang in a luhtermi telh chih in) sin in tangka laknak nawl a pek. TSCA ning in, EPA nih kum thum dan ah “a herh ning in” man remh a hau. 2018 ah, EPA nih 40 CFR Part 700 Subpart C laknak phunglam a chuah i atu lio man kha a khiah.