Musi wa20 Kubvumbi, 2023, US Environmental Protection Agency (EPA) yakaronga mutemo unorambidza zvakanyanya kugadzirwa, kugadzirwa, uye kugoverwa kwemethylene chloride mukutengeserana. EPA inoshandisa simba rayo pasi peChikamu 6(a) cheToxic Substances Control Act (TSCA), iyo inobvumira sangano iri kuisa zvirambidzo zvakadaro pamakemikari. Njodzi isina musoro yekukuvara kana mamiriro ezvinhu. Methylene chloride inonyanya kushandiswa semusanganiswa mune zvinonamira uye zvinovhara, zvigadzirwa zvemotokari, uye zvinobvisa pendi nependi, uye maindasitiri akadai semotokari, mishonga, uye makemikari anogona kukanganiswa nemutemo uyu.
Chikumbiro cheEPA chinoda kuti kushandiswa kwemethylene chloride kurambidzwe mumabasa mazhinji emaindasitiri nemabhizimisi. Chikumbiro ichi chinosanganisira kusabvumirwa, kunyanya kubviswa kwependi nependi dzinoshandiswa mubazi rezvendege kwemakore gumi kudzivirira kukuvara kwakanyanya kuchengetedzeka kwenyika nezvivakwa zvakakosha. EPA yakawedzerawo izvi kunze kwekushandisa kweNASA dichloromethane nekukurumidza pasi pemamwe mamiriro akaomarara kana akaomarara asina dzimwe nzira dzakachengeteka dzehunyanzvi kana hupfumi.
Chikumbiro chesangano iri chichabvumidzawo kushandiswa kwe dichloromethane kugadzira hydrofluorocarbon-32 (HFC-32), chinhu chinogona kushandiswa kubatsira kuchinja kubva kune mamwe maHFC anonzi ane mukana wepamusoro wekudziya kwepasi rose, zvichitsigira kuedza kweEPA kuderedza maHFC, zvichienderana neUS Innovation and Manufacturing Act ya2020. Zvisinei, sangano iri richada kuti vagadziri vendege, NASA, neHFC-32 vatevedzere chirongwa chekudzivirira makemikari emethylene chloride munzvimbo yebasa chinosanganisira miganhu inodiwa yekusvibiswa uye kutarisa kusvibiswa kwakabatana.
Kana mutemo uyu wangoburitswa muFederal Register, EPA ichagamuchira mashoko everuzhinji pamusoro pawo kwemazuva makumi matanhatu pa rules.gov/docket/EPA-HQ-OPPT-2020-0465.
Musi weChipiri, Chivabvu 16, 2023, US Environmental Protection Agency (EPA) yakaburitsa gwaro remutemo wakarongwa unochinja zviri muEPA zvinoshandisa Toxic Substances Control Act (TSCA). EPA inochengetedza TSCA Chemical Registry, iyo inoronga makemikari ese anozivikanwa kuti anowanikwa kutengeswa muUnited States. Pasi peTSCA, vagadziri nevanopinza vanofanirwa kuendesa zviziviso zvekutanga zvemakemikari matsva kunze kwekunge paine kusunungurwa (semuenzaniso kutsvagisa nekuvandudza) kunoshanda. EPA inofanirwa kupedzisa kuongororwa kwengozi yekemikari itsva isati yagadzirwa kana kupinza. Mutemo wakarongwa ikozvino unojekesa kuti EPA inofanira kupedzisa kuongororwa kwengozi kana kubvumidza chiziviso chekusunungurwa kwe100 muzana yemakemikari matsva zvigadzirwa zvisati zvapinda mumusika, zvichienderana neshanduko dzeTSCA dza2016.
Musi wa21 Kubvumbi, 2023, US Environmental Protection Agency (EPA) yakaburitsa gwaro reNational Plastic Pollution Prevention Strategy iro rinogona kukanganisa zvikuru nharaunda dzinotongwa nemutemo kusanganisira indasitiri yekurongedza, vatengesi, vagadziri vepurasitiki, nzvimbo dzekutarisira marara akasimba uye nzvimbo dzekudzokorodza, nezvimwewo. Sekureva kwegwaro iri, EPA ine chinangwa chekubvisa kuburitswa kwemarara epurasitiki nemamwe epasi munzvimbo yakapoteredzwa panosvika gore ra2040 nezvinangwa zvinotevera: kuderedza kusvibiswa mukugadzirwa kwepurasitiki, kuvandudza manejimendi yezvinhu mushure mekushandisa, kudzivirira marara nema micro-/nanoplastics kuti asapinde mumvura, uye kubvisa marara anobuda munzvimbo yakapoteredzwa. Pakati pezvinangwa izvi, EPA inoratidza zvidzidzo zvakasiyana-siyana nezviito zvemitemo zviri kufungwa. Pakati pezviito zvemitemo zviri kufungwa, EPA yakati iri kudzidza mitemo mitsva pasi peToxic Substances Control Act yenzvimbo dzepamusoro dzekudzokorodza dzinoshandisa pyrolysis kugadzirisa zvinhu zvakawanikwa kuita mapurasitiki akadzokorodzwa. Sangano iri riri kukumbirawo kuti chibvumirano cheBasel Convention chisimbiswe, icho United States yakabvumirana nacho asi isina kubvumidza muma1990, seimwe nzira yekugadzirisa dambudziko repasi rose remarara epurasitiki.
Musi wa16 Mbudzi, 2022, US Environmental Protection Agency (EPA) yakakurudzira kuwedzera mari yeToxic Substances and Control Act (TSCA), imwe yacho ichapetwa kaviri. Chiziviso ichi chekuwedzera cheProposed Rulemaking chinoshandura chirongwa cheEPA, chinoshanda kubva muna Ndira 11, 2021, kuti chiwedzere mari yeTSCA kunyanya kugadzirisa inflation. TSCA inobvumira EPA kubhadharisa vagadziri (kusanganisira vanopinza) mabasa emakambani zvichienderana neZvikamu 4, 5, 6 ne14 zveTSCA. Sekureva kweTSCA, EPA inofanirwa kugadzirisa mari "sezvinodiwa" makore matatu ega ega. Muna 2018, EPA yakaburitsa mutemo we40 CFR Part 700 Subpart C collection unoisa muripo wepari zvino.