{"database": "openregs", "table": "documents", "rows": [["MSHA-2014-0031-0013", "MSHA", "MSHA-2014-0031", "AB86-BKG-12  Environmental Protection Agency (EPA), Health Assessment Document for Diesel Engine Exhaust, National Center for Environmental Assessment, Office of Research and Development, May 2002.", "Supporting & Related Material", null, "2016-06-15T04:00:00Z", 2016, 6, null, null, "2016-06-15T20:53:03Z", null, 0, 0, "09000064820422b8"]], "columns": ["id", "agency_id", "docket_id", "title", "document_type", "subtype", "posted_date", "posted_year", "posted_month", "comment_start_date", "comment_end_date", "last_modified", "fr_doc_num", "open_for_comment", "withdrawn", "object_id"], "primary_keys": ["id"], "primary_key_values": ["MSHA-2014-0031-0013"], "units": {}, "query_ms": 1.4090051408857107, "source": "Federal Register API & Regulations.gov API", "source_url": "https://www.federalregister.gov/developers/api/v1", "license": "Public Domain (U.S. Government data)", "license_url": "https://www.regulations.gov/faq"}