{"database": "openregs", "table": "documents", "rows": [["MSHA-2016-0013-0026", "MSHA", "MSHA-2016-0013", "National Institute for Occupational Safety and Health (NIOSH).  2015.  Hierarchy of Controls.  NIOSH website at: https://www.cdc.gov/niosh/topics/hierarchy/.  Accessed June 4, 2019, last reviewed January 13, 2015.", "Supporting & Related Material", "NIOSH", "2019-09-12T04:00:00Z", 2019, 9, null, null, "2019-09-12T20:20:30Z", null, 0, 0, "0900006483f4b6b6"]], "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"posted_month", "comment_start_date", "comment_end_date", "last_modified", "fr_doc_num", "open_for_comment", "withdrawn", "object_id"], "primary_keys": ["id"], "primary_key_values": ["MSHA-2016-0013-0026"], "units": {}, "query_ms": 0.42003183625638485, "source": "Federal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"}