{"id":"S85087622","label":"Motor vehicles--Pollution control devices","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85087622","normalized_label":"motor vehicles--pollution control devices","broader":["http://id.loc.gov/authorities/subjects/sh85002574","http://id.loc.gov/authorities/subjects/sh85104540"],"aliases":["Emission control devices (Motor vehicles)","Exhaust control devices (Motor vehicles)","Motor vehicles--Emission control devices","Motor vehicles--Exhaust control devices","Motor vehicles--Smog control devices","Pollution control devices (Motor vehicles)","Smog control devices (Motor vehicles)"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85087622","provider":"lcsh","revision":"07a5991bc1dba29e","taxonomy_revision":"f050b5d4780b1289","title":"Motor vehicles--Pollution control devices","url":"/topics/S85087622","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"290693299445302848","address_version":"morton4x16-v1","coordinates":[0,20,18774,6144],"answer_status":"Directory metadata; local answer requires separate source review","truth_status":"Subject descriptor, not a factual answer or a demonstrated knowledge gap","reviewed_answer":null}