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 Committee Scope

API SC8 develops and maintains approximately 11 standards on:

  • drilling structures - Spec 4F and RP 4G;
  • drilling equipment - Spec 7K and RP 7L;
  • hoisting equipment - RP 8B and Spec 8C;
  • wire rope and roller chain - Spec 9A, RP 9B, and Spec 7F;
  • hammer unions - RP 7HU1 and Spec 7HU2.

You can get further details and scopes of these standards in the Exploration and Production section of the API Publications catalog at

 Reference Documents
 CSOEM Links

 Open Ballots

 Ballot IDStatusResultsOpensClosesDescription
Committee ID : 532652SC08/TG01: Drilling Structures
4284ClosedPass10/04/201711/15/2017API 4F - Item 5102 (Definition of Crown Block Assembly)
4285ClosedPass10/04/201711/15/2017API 4F - Item 5104 (Definition of Design Validation)
4286ClosedPass10/04/201711/15/2017API 4F - Item 6106 (Tubular Steel)
4287ClosedPass10/04/201711/15/2017API 4F - Item 6107 (Removal of Commercial Requirements)
4503ClosedPass06/25/201808/06/2018API Spec 4F, Item6106 (Use of Tubular Steel Members) - Reballot
4508ClosedPass06/28/201808/16/2018API 4F, Clarification of Wording - Sec.
4505ClosedPass06/28/201808/16/2018API 4G, 5th edition
4564ClosedPass08/27/201810/05/2018API 4F, 4th edition, Item 6102 - Implementation of AISC-360-16
4784ClosedPass03/25/201905/06/20194F, e4 WI-6102, Upgrade to AISC e15
4814ClosedPass05/02/201906/13/2019API 4F, 4th Edition, WI 6102-Part 2, Design for Stability
4848ClosedPass07/08/201908/05/2019API 4F, 5th Edition, WI-8102_Sec. 8.1.5 Hydraulic Cylinders
4850ClosedPass07/08/201908/19/2019API RP 4G, 5th Edition, WI 8104, Name Plating
5112ClosedPass03/30/202004/27/2020API RP 4G, 5th Edition, Addendum 1, Operating Day
5209ClosedPass07/16/202008/13/2020API RP4G, 5th Edition, WI8103_Section 6.3 and Table 2
Committee ID : 11111466SC08/TG02: Drilling Equipment
4542ClosedPass07/20/201808/31/2018API 7K - Item 7201 (Design Verification and Validation)
4543ClosedPass07/20/201808/31/2018API 7K- Item-2202and3201-Hoses-20180720
4546ClosedResolution Required07/25/201808/31/2018API 7K, e6, Ammendment Item 7202; Alignment of 8C(3301)into 7K
4545ClosedPass07/23/201808/31/2018API 7L, 2e, Addendum hose related
4583ClosedPass08/29/201810/10/2018API 7K, 6th Edition, Item 5203 (Power Tongs)
4855ClosedPass07/10/201908/21/2019API 7K, 7th Edition, BOP Handling - Comments Only
4857ClosedPass07/19/201908/30/2019API RP 7L, 1st Edition - Reaffirmation
4876ClosedPass08/01/201909/12/2019API Spec 7K, 6th Edition, WI-8202_Dropped Objects
4952ClosedPass10/09/201911/20/2019API Spec 7K, 6th Edition, WI 0202-Drawworks-Comment Only
5178ClosedPass06/24/202008/05/2020API Spec 7K, 6th Edition, WI 8201-production lot markup
5201ClosedPass07/03/202008/07/2020SC8-RP Field Verification Procedure-Surface Applied Torque-Comment Only
5321ClosedRecirculation10/16/202012/10/2020API Spec 7K, 6th Edition, WI 9202, BOP Handling Systems and Equipment
Committee ID : 11121467SC08/TG03: Hoisting Equipment
4070ClosedPass02/16/201703/30/2017API 8C - Item 3301 (Nominal Equivalent Stress)
4476ClosedPass05/09/201806/07/2018API 8B - 8th Edition, Addendum 1
4473ClosedPass05/08/201806/07/2018API 8C - Item 7302 (Sheave Marking Req)
4474ClosedPass05/08/201806/07/2018API 8C - Item 7303 (Rotary Swivel Pressure Test)
4552ClosedPass08/13/201809/24/2018API 8C-6e, Item 3302 Marking Requirements
4856ClosedPass07/19/201908/30/2019API Spec 8C, 5th Edition - Reaffirmation
4877ClosedPass08/01/201909/12/2019API 8C, 5th Edition, WI 5304
5201ClosedPass07/03/202008/07/2020SC8-RP Field Verification Procedure-Surface Applied Torque-Comment Only
5203ClosedPass07/14/202008/25/2020API Spec 8C, 5th Edition, WI 9302 - Dropped Objects
5214ClosedPass07/21/202009/01/2020API Spec 8C, 5th Edition,WI 7303 Rotary Swivel
5332ClosedPass10/26/202012/14/2020API RP 8B, 8th Edition, Addendum 2 - WI 8103
Committee ID : 11131468SC08/TG04: Wire Rope & Roller Chain
4468ClosedPass05/07/201806/07/2018API 9B - Item 1402 (Wire Rope Design Factors)
4472ClosedPass05/08/201806/07/2018API 9B - Item 5401 (Improve Clarity)
4706ClosedPass01/15/201902/19/2019API 9B_Item5401-part2_Clarify Sec. 2.7
4826ClosedPass05/28/201907/02/2019API Spec 9A, 27th edition, document review
5550ClosedPass07/29/202109/09/2021API Spec 7F, 8th Edition, Reaffirmation
Committee ID : 13311722SC08/TG05: Hammer Unions
4846ClosedPass07/03/201908/14/2019API 7HU2, 1st Edition
5020ClosedPass01/31/202002/28/2020API RP 7HU1, 1st Edition - Reaffirmation
5115ClosedPass04/02/202005/14/2020API Spec 7HU2, 1st Edition, Limited Reballot
5460ClosedPass04/02/202105/16/20217HU2, 1st Edition Reballot
5633ClosedPass10/18/202111/09/2021API Spec 7HU2, 1st Edition, Limited Reballot
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