Federal Register Recent Federal Regulation Documents - Justia Regulation Tracker - Justia Regulations Trackerhttps://regulations.justia.com/regulations/fedreg/agencies/department-of-justice/2013/10?limit=200®isters=between&min-day=1&max-day=31&mode=atom2024-10-05T23:50:08-07:00Justia Inchttps://www.justia.com/Justia Regulations Trackerhttps://regulations.justia.com/images/justiafedregulations.gifCopyright 2011 Justia Inchttps://regulations.justia.com/regulations/fedreg/2013/10/31/2013-25868.htmlNotice - Notice of Lodging of Proposed Consent Decree Under the Safe Drinking Water Act2013-10-31T00:00:00-07:002013-10-31T00:00:00-07:002013-25868Noticehttp://www.gpo.gov/fdsys/pkg/FR-2013-10-31/pdf/2013-25868.pdfhttps://regulations.justia.com/regulations/fedreg/2013/10/31/2013-25856.htmlNotice - Notice of Lodging of Consent Decree Pursuant to the Clean Water Act2013-10-31T00:00:00-07:002013-10-31T00:00:00-07:002013-25856Noticehttp://www.gpo.gov/fdsys/pkg/FR-2013-10-31/pdf/2013-25856.pdfhttps://regulations.justia.com/regulations/fedreg/2013/10/30/2013-25701.htmlNotice - Agency Information Collection Activities; Revision of a Previously Approved Collection, with Change; Comments Requested: COPS Progress Report2013-10-30T00:00:00-07:002013-10-30T00:00:00-07:002013-25701Noticehttp://www.gpo.gov/fdsys/pkg/FR-2013-10-30/pdf/2013-25701.pdfhttps://regulations.justia.com/regulations/fedreg/2013/10/29/2013-25562.htmlNotice - Meeting of the CJIS Advisory Policy Board2013-10-29T00:00:00-07:002013-10-29T00:00:00-07:002013-25562Noticehttp://www.gpo.gov/fdsys/pkg/FR-2013-10-29/pdf/2013-25562.pdfhttps://regulations.justia.com/regulations/fedreg/2013/10/28/2013-25370.htmlNotice - Commerce in Explosives; List of Explosives Materials2013-10-28T00:00:00-07:002013-10-28T00:00:00-07:002013-25370Noticehttp://www.gpo.gov/fdsys/pkg/FR-2013-10-28/pdf/2013-25370.pdfhttps://regulations.justia.com/regulations/fedreg/2013/10/28/2013-25283.htmlNotice - Notice Pursuant to the National Cooperative Research and Production Act of 1993-Heterogeneous System Architecture Foundation2013-10-28T00:00:00-07:002013-10-28T00:00:00-07:002013-25283Noticehttp://www.gpo.gov/fdsys/pkg/FR-2013-10-28/pdf/2013-25283.pdfhttps://regulations.justia.com/regulations/fedreg/2013/10/28/2013-25282.htmlNotice - Notice Pursuant to The National Cooperative Research and Production Act of 1993; DVD Copy Control Association2013-10-28T00:00:00-07:002013-10-28T00:00:00-07:002013-25282Noticehttp://www.gpo.gov/fdsys/pkg/FR-2013-10-28/pdf/2013-25282.pdfhttps://regulations.justia.com/regulations/fedreg/2013/10/28/2013-25281.htmlNotice - Notice Pursuant to the National Cooperative Research and Production Act of 1993-ASTM International Standards2013-10-28T00:00:00-07:002013-10-28T00:00:00-07:002013-25281Noticehttp://www.gpo.gov/fdsys/pkg/FR-2013-10-28/pdf/2013-25281.pdfhttps://regulations.justia.com/regulations/fedreg/2013/10/28/2013-25219.htmlNotice - AG Survey of Transitional Housing Assistance for Victims of Domestic Violence, Dating Violence, Stalking, or Sexual Assault Program Grantees Agency Information Collection Activities: New Collection2013-10-28T00:00:00-07:002013-10-28T00:00:00-07:002013-25219Noticehttp://www.gpo.gov/fdsys/pkg/FR-2013-10-28/pdf/2013-25219.pdfhttps://regulations.justia.com/regulations/fedreg/2013/10/25/2013-25166.htmlRule - Progress Reports Rules Revision2013-10-25T00:00:00-07:002013-10-25T00:00:00-07:002013-25166Rulehttp://www.gpo.gov/fdsys/pkg/FR-2013-10-25/pdf/2013-25166.pdfhttps://regulations.justia.com/regulations/fedreg/2013/10/25/2013-25161.htmlNotice - Agency Information Collection Activities; Proposed Collection; Comments Requested; New Collection: 2013 Census of Federal, State, and Local Law Enforcement Agencies2013-10-25T00:00:00-07:002013-10-25T00:00:00-07:002013-25161Noticehttp://www.gpo.gov/fdsys/pkg/FR-2013-10-25/pdf/2013-25161.pdfhttps://regulations.justia.com/regulations/fedreg/2013/10/25/2013-25160.htmlNotice - Agency Information Collection Activities; Proposed Collection; Comments Requested: Geospatial Capabilities Survey2013-10-25T00:00:00-07:002013-10-25T00:00:00-07:002013-25160Noticehttp://www.gpo.gov/fdsys/pkg/FR-2013-10-25/pdf/2013-25160.pdfhttps://regulations.justia.com/regulations/fedreg/2013/10/25/2013-25102.htmlNotice - Manufacturer of Controlled Substances; Notice of Application; Cedarburg Pharmaceuticals, Inc.2013-10-25T00:00:00-07:002013-10-25T00:00:00-07:002013-25102Noticehttp://www.gpo.gov/fdsys/pkg/FR-2013-10-25/pdf/2013-25102.pdfhttps://regulations.justia.com/regulations/fedreg/2013/10/25/2013-25101.htmlNotice - Manufacturer of Controlled Substances; Notice of Application; GE Healthcare2013-10-25T00:00:00-07:002013-10-25T00:00:00-07:002013-25101Noticehttp://www.gpo.gov/fdsys/pkg/FR-2013-10-25/pdf/2013-25101.pdfhttps://regulations.justia.com/regulations/fedreg/2013/10/25/2013-25098.htmlNotice - Manufacturer of Controlled Substances, Notice of Registration, Siegfried USA, LLC2013-10-25T00:00:00-07:002013-10-25T00:00:00-07:002013-25098Noticehttp://www.gpo.gov/fdsys/pkg/FR-2013-10-25/pdf/2013-25098.pdfhttps://regulations.justia.com/regulations/fedreg/2013/10/25/2013-25097.htmlNotice - Manufacturer of Controlled Substances, Notice of Application, Stepan Company2013-10-25T00:00:00-07:002013-10-25T00:00:00-07:002013-25097Noticehttp://www.gpo.gov/fdsys/pkg/FR-2013-10-25/pdf/2013-25097.pdfhttps://regulations.justia.com/regulations/fedreg/2013/10/25/2013-25096.htmlNotice - Manufacturer of Controlled Substances; Notice of Registration; Boehringer Ingelheim Chemicals, Inc.2013-10-25T00:00:00-07:002013-10-25T00:00:00-07:002013-25096Noticehttp://www.gpo.gov/fdsys/pkg/FR-2013-10-25/pdf/2013-25096.pdfhttps://regulations.justia.com/regulations/fedreg/2013/10/25/2013-25094.htmlNotice - Importer of Controlled Substances; Notice of Registration; Watson Pharma, Inc.2013-10-25T00:00:00-07:002013-10-25T00:00:00-07:002013-25094Noticehttp://www.gpo.gov/fdsys/pkg/FR-2013-10-25/pdf/2013-25094.pdfhttps://regulations.justia.com/regulations/fedreg/2013/10/25/2013-25091.htmlNotice - Manufacturer of Controlled Substances; Notice of Application; Cambrex Charles City, Inc.2013-10-25T00:00:00-07:002013-10-25T00:00:00-07:002013-25091Noticehttp://www.gpo.gov/fdsys/pkg/FR-2013-10-25/pdf/2013-25091.pdfhttps://regulations.justia.com/regulations/fedreg/2013/10/25/2013-25090.htmlNotice - Importer of Controlled Substances, Notice of Registration, Siegfried (USA), LLC2013-10-25T00:00:00-07:002013-10-25T00:00:00-07:002013-25090Noticehttp://www.gpo.gov/fdsys/pkg/FR-2013-10-25/pdf/2013-25090.pdfhttps://regulations.justia.com/regulations/fedreg/2013/10/25/2013-25088.htmlNotice - Manufacturer of Controlled Substances; Notice of Application; Pharmacore, Inc.2013-10-25T00:00:00-07:002013-10-25T00:00:00-07:002013-25088Noticehttp://www.gpo.gov/fdsys/pkg/FR-2013-10-25/pdf/2013-25088.pdfhttps://regulations.justia.com/regulations/fedreg/2013/10/25/2013-25087.htmlNotice - Importer of Controlled Substances; Notice of Registration; Stepan Company2013-10-25T00:00:00-07:002013-10-25T00:00:00-07:002013-25087Noticehttp://www.gpo.gov/fdsys/pkg/FR-2013-10-25/pdf/2013-25087.pdfhttps://regulations.justia.com/regulations/fedreg/2013/10/25/2013-25086.htmlNotice - Importer of Controlled Substances, Notice of Registration, Boehringer Ingelheim Chemicals2013-10-25T00:00:00-07:002013-10-25T00:00:00-07:002013-25086Noticehttp://www.gpo.gov/fdsys/pkg/FR-2013-10-25/pdf/2013-25086.pdfhttps://regulations.justia.com/regulations/fedreg/2013/10/25/2013-25085.htmlNotice - Manufacturer of Controlled Substances, Notice of Application, Research Triangle Institute2013-10-25T00:00:00-07:002013-10-25T00:00:00-07:002013-25085Noticehttp://www.gpo.gov/fdsys/pkg/FR-2013-10-25/pdf/2013-25085.pdfhttps://regulations.justia.com/regulations/fedreg/2013/10/25/2013-25084.htmlNotice - Manufacturer of Controlled Substances, Notice of Registration, Penick Corporation2013-10-25T00:00:00-07:002013-10-25T00:00:00-07:002013-25084Noticehttp://www.gpo.gov/fdsys/pkg/FR-2013-10-25/pdf/2013-25084.pdfhttps://regulations.justia.com/regulations/fedreg/2013/10/25/2013-25081.htmlNotice - Importer of Controlled Substances, Notice of Registration, Akorn, Inc.2013-10-25T00:00:00-07:002013-10-25T00:00:00-07:002013-25081Noticehttp://www.gpo.gov/fdsys/pkg/FR-2013-10-25/pdf/2013-25081.pdfhttps://regulations.justia.com/regulations/fedreg/2013/10/25/2013-25079.htmlNotice - Manufacturer of Controlled Substances, Notice of Application, Nektar Therapeutics2013-10-25T00:00:00-07:002013-10-25T00:00:00-07:002013-25079Noticehttp://www.gpo.gov/fdsys/pkg/FR-2013-10-25/pdf/2013-25079.pdfhttps://regulations.justia.com/regulations/fedreg/2013/10/25/2013-25078.htmlNotice - Manufacturer of Controlled Substances; Notice of Registration; Agilent Technologies2013-10-25T00:00:00-07:002013-10-25T00:00:00-07:002013-25078Noticehttp://www.gpo.gov/fdsys/pkg/FR-2013-10-25/pdf/2013-25078.pdfhttps://regulations.justia.com/regulations/fedreg/2013/10/25/2013-25077.htmlNotice - Importer of Controlled Substances, Notice of Application, Wildlife Laboratories, Inc.2013-10-25T00:00:00-07:002013-10-25T00:00:00-07:002013-25077Noticehttp://www.gpo.gov/fdsys/pkg/FR-2013-10-25/pdf/2013-25077.pdfhttps://regulations.justia.com/regulations/fedreg/2013/10/25/2013-25076.htmlNotice - Manufacturer of Controlled Substances; Notice of Registration; Sigma Aldrich Research Biochemicals, Inc.2013-10-25T00:00:00-07:002013-10-25T00:00:00-07:002013-25076Noticehttp://www.gpo.gov/fdsys/pkg/FR-2013-10-25/pdf/2013-25076.pdfhttps://regulations.justia.com/regulations/fedreg/2013/10/25/2013-25075.htmlNotice - Manufacturer of Controlled Substances; Notice of Registration; Siegfried USA, LLC2013-10-25T00:00:00-07:002013-10-25T00:00:00-07:002013-25075Noticehttp://www.gpo.gov/fdsys/pkg/FR-2013-10-25/pdf/2013-25075.pdfhttps://regulations.justia.com/regulations/fedreg/2013/10/25/2013-25073.htmlNotice - Importer of Controlled Substances; Notice of Application; United States Pharmacopeial Convention2013-10-25T00:00:00-07:002013-10-25T00:00:00-07:002013-25073Noticehttp://www.gpo.gov/fdsys/pkg/FR-2013-10-25/pdf/2013-25073.pdfhttps://regulations.justia.com/regulations/fedreg/2013/10/25/2013-25072.htmlNotice - Manufacturer of Controlled Substances, Notice of Registration, Austin Pharma, LLC.2013-10-25T00:00:00-07:002013-10-25T00:00:00-07:002013-25072Noticehttp://www.gpo.gov/fdsys/pkg/FR-2013-10-25/pdf/2013-25072.pdfhttps://regulations.justia.com/regulations/fedreg/2013/10/25/2013-25069.htmlNotice - Importer of Controlled Substances; Notice of Application; Noramco, Inc.2013-10-25T00:00:00-07:002013-10-25T00:00:00-07:002013-25069Noticehttp://www.gpo.gov/fdsys/pkg/FR-2013-10-25/pdf/2013-25069.pdfhttps://regulations.justia.com/regulations/fedreg/2013/10/25/2013-25067.htmlNotice - Manufacturer of Controlled Substances; Notice of Registration; Noramco, Inc. (GA)2013-10-25T00:00:00-07:002013-10-25T00:00:00-07:002013-25067Noticehttp://www.gpo.gov/fdsys/pkg/FR-2013-10-25/pdf/2013-25067.pdfhttps://regulations.justia.com/regulations/fedreg/2013/10/25/2013-25064.htmlNotice - Importer of Controlled Substances; Notice of Application; Penick Corporation2013-10-25T00:00:00-07:002013-10-25T00:00:00-07:002013-25064Noticehttp://www.gpo.gov/fdsys/pkg/FR-2013-10-25/pdf/2013-25064.pdfhttps://regulations.justia.com/regulations/fedreg/2013/10/25/2013-25062.htmlNotice - Importer of Controlled Substances; Notice of Application; Cambrex Charles City, Inc.2013-10-25T00:00:00-07:002013-10-25T00:00:00-07:002013-25062Noticehttp://www.gpo.gov/fdsys/pkg/FR-2013-10-25/pdf/2013-25062.pdfhttps://regulations.justia.com/regulations/fedreg/2013/10/25/2013-25060.htmlNotice - Manufacturer of Controlled Substances; Notice of Registration; Chemtos, LLC2013-10-25T00:00:00-07:002013-10-25T00:00:00-07:002013-25060Noticehttp://www.gpo.gov/fdsys/pkg/FR-2013-10-25/pdf/2013-25060.pdfhttps://regulations.justia.com/regulations/fedreg/2013/10/24/2013-25022.htmlNotice - Meeting of the National Coordination Committee on the AI/AN SANE-SART Initiative2013-10-24T00:00:00-07:002013-10-24T00:00:00-07:002013-25022Noticehttp://www.gpo.gov/fdsys/pkg/FR-2013-10-24/pdf/2013-25022.pdfhttps://regulations.justia.com/regulations/fedreg/2013/10/24/2013-24988.htmlNotice - Agency Information Collection Activities; Extension of a Currently Approved Collection: Semi-Annual Progress Report for the Technical Assistance Program2013-10-24T00:00:00-07:002013-10-24T00:00:00-07:002013-24988Noticehttp://www.gpo.gov/fdsys/pkg/FR-2013-10-24/pdf/2013-24988.pdfhttps://regulations.justia.com/regulations/fedreg/2013/10/24/2013-24884.htmlNotice - Notice of Lodging of Proposed Consent Decree Under the Clean Air Act and the Emergency Planning and Community Right-To Know Act2013-10-24T00:00:00-07:002013-10-24T00:00:00-07:002013-24884Noticehttp://www.gpo.gov/fdsys/pkg/FR-2013-10-24/pdf/2013-24884.pdfhttps://regulations.justia.com/regulations/fedreg/2013/10/23/2013-24751.htmlNotice - Agency Information Collection Activities; Proposed Collection; Comments Requested: Application for Permit To Import Controlled Substances for Domestic and/or Scientific Purposes Pursuant to 21 U.S.C. 952 (DEA Form 357)2013-10-23T00:00:00-07:002013-10-23T00:00:00-07:002013-24751Noticehttp://www.gpo.gov/fdsys/pkg/FR-2013-10-23/pdf/2013-24751.pdfhttps://regulations.justia.com/regulations/fedreg/2013/10/23/2013-24733.htmlNotice - Certification of Compliance With the Statutory Eligibility Requirements of the Violence Against Women Act as Amended for Applicants to the STOP (Services* Training* Officers* Prosecutors) Violence Against Women Formula Grant Program; Agency Information Collection Activities: Revision of a Currently Approved Collection2013-10-23T00:00:00-07:002013-10-23T00:00:00-07:002013-24733Noticehttp://www.gpo.gov/fdsys/pkg/FR-2013-10-23/pdf/2013-24733.pdfhttps://regulations.justia.com/regulations/fedreg/2013/10/23/2013-24732.htmlNotice - Agency Information Collection Activities: Proposed Collection, Comments Requested; Extension of a Currently Approved Collection; Monthly Return of Arson Offenses Known to Law Enforcement2013-10-23T00:00:00-07:002013-10-23T00:00:00-07:002013-24732Noticehttp://www.gpo.gov/fdsys/pkg/FR-2013-10-23/pdf/2013-24732.pdfhttps://regulations.justia.com/regulations/fedreg/2013/10/23/2013-24731.htmlNotice - Agency Information Collection Activities: Proposed Collection, Comments Requested; Extension of a Currently Approved Collection; Number of Full-time Law Enforcement Employees as of October 312013-10-23T00:00:00-07:002013-10-23T00:00:00-07:002013-24731Noticehttp://www.gpo.gov/fdsys/pkg/FR-2013-10-23/pdf/2013-24731.pdfhttps://regulations.justia.com/regulations/fedreg/2013/10/22/2013-24698.htmlNotice - Ronald F. Lambert, D.D.S.; Decision and Order2013-10-22T00:00:00-07:002013-10-22T00:00:00-07:002013-24698Noticehttp://www.gpo.gov/fdsys/pkg/FR-2013-10-22/pdf/2013-24698.pdfhttps://regulations.justia.com/regulations/fedreg/2013/10/22/2013-24697.htmlNotice - Mark G. Medinnus, D.D.S.; Decision and Order2013-10-22T00:00:00-07:002013-10-22T00:00:00-07:002013-24697Noticehttp://www.gpo.gov/fdsys/pkg/FR-2013-10-22/pdf/2013-24697.pdfhttps://regulations.justia.com/regulations/fedreg/2013/10/22/2013-24696.htmlNotice - Morris W. Cochran, M.D.; Decision and Order2013-10-22T00:00:00-07:002013-10-22T00:00:00-07:002013-24696Noticehttp://www.gpo.gov/fdsys/pkg/FR-2013-10-22/pdf/2013-24696.pdfhttps://regulations.justia.com/regulations/fedreg/2013/10/22/2013-24695.htmlNotice - Kenneth Harold Bull, M.D.; Decision and Order2013-10-22T00:00:00-07:002013-10-22T00:00:00-07:002013-24695Noticehttp://www.gpo.gov/fdsys/pkg/FR-2013-10-22/pdf/2013-24695.pdfhttps://regulations.justia.com/regulations/fedreg/2013/10/22/2013-24694.htmlNotice - Anthony E. Wicks, M.D. Decision and Order2013-10-22T00:00:00-07:002013-10-22T00:00:00-07:002013-24694Noticehttp://www.gpo.gov/fdsys/pkg/FR-2013-10-22/pdf/2013-24694.pdfhttps://regulations.justia.com/regulations/fedreg/2013/10/22/2013-24627.htmlNotice - Hoi Y. Kam, M.D.; Decision and Order2013-10-22T00:00:00-07:002013-10-22T00:00:00-07:002013-24627Noticehttp://www.gpo.gov/fdsys/pkg/FR-2013-10-22/pdf/2013-24627.pdfhttps://regulations.justia.com/regulations/fedreg/2013/10/22/2013-24621.htmlNotice - Lannett Company, Inc.; Grant of Registration To Import Schedule I Substance2013-10-22T00:00:00-07:002013-10-22T00:00:00-07:002013-24621Noticehttp://www.gpo.gov/fdsys/pkg/FR-2013-10-22/pdf/2013-24621.pdfhttps://regulations.justia.com/regulations/fedreg/2013/10/22/2013-24600.htmlProposed Rule - Schedules of Controlled Substances: Placement of Perampanel into Schedule III2013-10-22T00:00:00-07:002013-10-22T00:00:00-07:002013-24600Proposed Rulehttp://www.gpo.gov/fdsys/pkg/FR-2013-10-22/pdf/2013-24600.pdfhttps://regulations.justia.com/regulations/fedreg/2013/10/22/2013-24336.htmlNotice - Notice of Lodging of Consent Decree Pursuant to the Clean Air Act2013-10-22T00:00:00-07:002013-10-22T00:00:00-07:002013-24336Noticehttp://www.gpo.gov/fdsys/pkg/FR-2013-10-22/pdf/2013-24336.pdfhttps://regulations.justia.com/regulations/fedreg/2013/10/10/2013-24432.htmlProposed Rule - Schedules of Controlled Substances: Temporary Placement of Three Synthetic Phenethylamines Into Schedule I2013-10-10T00:00:00-07:002013-10-10T00:00:00-07:002013-24432Proposed Rulehttp://www.gpo.gov/fdsys/pkg/FR-2013-10-10/pdf/2013-24432.pdfhttps://regulations.justia.com/regulations/fedreg/2013/10/08/2013-24400.htmlNotice - Joe W. Morgan, D.O.; Decision and Order2013-10-08T00:00:00-07:002013-10-08T00:00:00-07:002013-24400Noticehttp://www.gpo.gov/fdsys/pkg/FR-2013-10-08/pdf/2013-24400.pdfhttps://regulations.justia.com/regulations/fedreg/2013/10/04/2013-24300.htmlNotice - Agency Information Collection Activities; Proposed Collection; Comments Requested; Extension of Currently Approved Collection: Bureau of Justice Assistance Application Form; Law Enforcement Congressional Badge of Bravery2013-10-04T00:00:00-07:002013-10-04T00:00:00-07:002013-24300Noticehttp://www.gpo.gov/fdsys/pkg/FR-2013-10-04/pdf/2013-24300.pdfhttps://regulations.justia.com/regulations/fedreg/2013/10/04/2013-24270.htmlNotice - Notice of Lodging of Proposed Consent Decree Under the Safe Drinking Water Act2013-10-04T00:00:00-07:002013-10-04T00:00:00-07:002013-24270Noticehttp://www.gpo.gov/fdsys/pkg/FR-2013-10-04/pdf/2013-24270.pdfhttps://regulations.justia.com/regulations/fedreg/2013/10/03/2013-24229.htmlNotice - Meeting of the Compact Council for the National Crime Prevention and Privacy Compact2013-10-03T00:00:00-07:002013-10-03T00:00:00-07:002013-24229Noticehttp://www.gpo.gov/fdsys/pkg/FR-2013-10-03/pdf/2013-24229.pdfhttps://regulations.justia.com/regulations/fedreg/2013/10/03/2013-24117.htmlNotice - Notice of Lodging of Proposed Consent Decree Under the Comprehensive Environmental Response, Compensation and Liability Act2013-10-03T00:00:00-07:002013-10-03T00:00:00-07:002013-24117Noticehttp://www.gpo.gov/fdsys/pkg/FR-2013-10-03/pdf/2013-24117.pdfhttps://regulations.justia.com/regulations/fedreg/2013/10/03/2013-24052.htmlNotice - Decision and Order: Clair L. Pettinger, M.D.2013-10-03T00:00:00-07:002013-10-03T00:00:00-07:002013-24052Noticehttp://www.gpo.gov/fdsys/pkg/FR-2013-10-03/pdf/2013-24052.pdfhttps://regulations.justia.com/regulations/fedreg/2013/10/01/2013-23789.htmlNotice - Agency Information Collection Activities: Proposed Collection; Comments Requested: Special Agent Medical Preplacement2013-10-01T00:00:00-07:002013-10-01T00:00:00-07:002013-23789Noticehttp://www.gpo.gov/fdsys/pkg/FR-2013-10-01/pdf/2013-23789.pdf