MyCommittees > Standards > CRE > SCAST

 Subcommittee Scope

Welcome to the API Subcommittee on Aboveground Storage Tanks (SCAST) web page. SCAST provides an important service to the refining, marketing, pipeline and petrochemical industry by developing recommended practices and construction, inspection and repair standards for aboveground storage tanks. In addition to the petroleum industry, API's tank standards are also used in the pulp and paper, utilities, food processing, fertilizer, and other process-related industries. SCAST's portfolio of standards includes:

  • Std 620 - Design and Construction of Large, Welded, Low-Pressure Storage Tanks
  • Std 625 - Tank Systems for Refrigerated Liquefied Gas Storage
  • Std 650 - Welded Tanks for Oil Storage
  • RP 651 - Cathodic Protection of Aboveground Storage Tanks
  • RP 652 - Lining of Aboveground Petroleum Storage Tank Bottoms
  • Std 653 - Tank Inspection, Repair, Alteration, and Reconstruction
  • Spec 12B - Specification for Bolted Tanks for Storage of Production Liquids
  • Spec 12D - Specification for Field Welded Tanks for Storage of Production Liquids
  • Spec 12F - Specification for Shop Welded Tanks for Storage of Production Liquids
  • Spec 12P - Specification for Fiberglass Reinforced Plastic Tanks
  • RP 12R1 - RP for Setting, Maintenance, Inspection, Operation, and Repair of Tanks in Production Service
  • Std 2015 - Requirements for Safe Entry and Cleaning of Petroleum Storage Tanks
  • RP 2016 - Guidelines and Procedures for Entering and Cleaning Petroleum Storage Tanks
  • Publ 2026 - Safe Access/Egress Involving Floating Roofs of Storage Tanks in Petroleum Service (SCAST document as of 2013)
  • RP 2027 - Ignition Hazards and Safe Work Practices for Abrasive Blasting in Petroleum Service (SCAST document as of 2013)
  • RP 2207 - Preparing Tank Bottoms for Hot Work (SCAST document as of 2013)
  • Std 2510 - Design and Construction of LPG Installations (SCAST document as of 2013)
  • Std 2610 - Design, Construction Operation, Maintenance, and Inspection of Terminal and Tank Facilities

These standards draw from a synergy of a high level of technical expertise and a long history of experience. The tank standards benefit owner/operators by providing the perspective and experience of other companies. Small companies gain expertise that would not be practically available otherwise. All companies benefit from proactively following industry standards developed using API's consensus process.

Chair: Todd McClellan, Colonial Pipeline Company
Vice-Chair: Ingrid Pederson, Enbridge 

Thank you for attending the API 2022 Spring Refining and Equipment Standards Meeting. 

The 2022 Fall Refining and Equipment Standards Meeting is planned for November 14 - 18, 2022 at the Hyatt Regency New Orleans, Louisiana.

Please visit events.api.org for meeting logistics and other information

  
  
  
ballot27-05-653-204results.pdfballot27-05-653-204resultsyoungv@api.org
PVT Spring 2005agendaitemsapprovedforballotorpublication.docPVT Spring 2005agendaitemsapprovedforballotorpublicationyoungv@api.org
PVT Spring 2005agendaitemsapprovedforballotorpublication.pdfPVT Spring 2005agendaitemsapprovedforballotorpublicationyoungv@api.org
pvt2005agendaitems.docpvt2005agendaitemsyoungv@api.org
ballot25-05-653-187.docballot25-05-653-187youngv@api.org
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Folder: Draft DocumentsDraft Documentspulliaml@api.org
Folder: Ballot Results and CommentsBallot Results and Commentspulliaml@api.org
Folder: 20062006pulliaml@api.org
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Folder: 15March21_TG_mtg
  
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Folder: Final Report on Out–of–Plane Tank Settlement, Equity Engineering
  
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Folder: Regulatory
  
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Folder: Std 620
  
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Folder: Tank Documents Publication Plan
  
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API Style Manual - 2020 Edition.pdf
  
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Folder: Fall 2020 Ballot ResultsFall 2020 Ballot Resultsgodoyj@api.org
Folder: New folderNew folderWallN@api.org
Folder: 2014 Spring Ballot Results2014 Spring Ballot ResultsWallN@api.org
Folder: 2013 Fall Ballot Results2013 Fall Ballot Resultscrimaudos@api.org
Folder: 2012 Fall Ballot Results2012 Fall Ballot Resultscrimaudos@api.org
Folder: 2013 Spring Ballot Results2013 Spring Ballot Resultscrimaudos@api.org
Folder: 2012 Spring Ballot Results2012 Spring Ballot Resultscrimaudos@api.org
Folder: RBI Ballot Results only - Fall 2011RBI Ballot Results only - Fall 2011crimaudos@api.org
Folder: 2011 Fall Ballot Results2011 Fall Ballot Resultscrimaudos@api.org
Folder: 2011 Spring Ballot Results2011 Spring Ballot Resultscrimaudos@api.org
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2020 API Storage Tank Conference Program - Final .pdf2020 API Storage Tank Conference Program - Final godoyj@api.org
  
  
  
Folder: Answered Technical Inquiries - by StandardAnswered Technical Inquiries - by Standardcrimaudos@api.org
 Reference Documents
 Calendar of Events
 API Refining Meeting Information
 

 Ballots

 Ballot IDStatusResultsOpensClosesDescription
Committee ID : 677812SCAST - Subcommittee on Aboveground Storage Tanks
5702ClosedIn Progress03/10/202204/21/2022API 620-2055 - Liner Thickness Rules - rev 0
5740ClosedIn Progress03/29/202205/03/2022API 620-1010 Update Anchor Strap Design Guidance for Cold Storage Tanks
5738ClosedIn Progress03/29/202205/03/2022API 653 Metrication
5750ClosedIn Progress03/29/202205/03/2022API 653-1008
5751ClosedIn Progress03/29/202205/03/2022API 653-1011 Nominal Thickness Definition
5714ClosedIn Progress03/11/202205/03/2022API 653-2054_e5 Annex G
5734ClosedIn Progress03/24/202205/05/2022API 651 4th Edition Final Ballot
5757ClosedIn Progress04/05/202205/10/2022API 650-1097 Outlet Allowance
5758ClosedIn Progress04/05/202205/10/2022API 650-1102 Annex C and H Terminology
5861ClosedIn Progress09/13/202210/25/2022API 620-2059 Sub size impact testing for duplex stainless steels
5862ClosedIn Progress09/13/202210/25/2022API 620-2061 Sidewall-to-Bottom Vacuum Box for Annexes Q and R
5863ClosedIn Progress09/13/202210/25/2022API 620-2062 Reiterate the Spot RT Exemption in 7.17.2.1
5865ClosedIn Progress09/13/202210/25/2022API 650- 2022-F1
5870ClosedIn Progress09/13/202210/25/2022API 650 2064 Sub size impact testing for duplex stainless steels
5867ClosedIn Progress09/13/202210/25/2022API 650-2059 Clarify Requirements for Welding over Protective Coatings in Section 9.2.1.6
5868ClosedIn Progress09/13/202210/25/2022API 650-2062 Verbiage change of “completely remove” that matches 653
5869ClosedIn Progress09/13/202210/25/2022API 650-2063 Annex S nozzle weld spacing
5883ClosedIn Progress09/19/202210/31/2022653-2054 Annex G: Qualification of Tank Bottom Examination Procedures and Personnel
5873ClosedIn Progress09/13/202210/31/2022API 653-2049 Alternate Inspection Deferrals
5885ClosedIn Progress09/20/202211/01/2022API 2015 9th Edition Ballot
5866ClosedIn Progress09/13/202211/01/2022API 650-2828 Hydrotest requirements in Annex C&H
5872ClosedIn Progress09/13/202211/03/2022API 653-2024 Review Need for Revision to Annex C Checklist
5874ClosedIn Progress09/13/202211/03/2022API 653-2050 Verbiage change of “completely remove”
5875ClosedIn Progress09/13/202211/03/2022API 653-2051 Allow Limited Extension of Bottom Service Interval After Non-Complying Robotic Inspection Results
5876ClosedIn Progress09/13/202211/03/2022API 653-2053 Extent of Radiography in Shell Inserts and Door Sheets
5877ClosedIn Progress09/13/202211/03/2022API 653-2055 Inspection of Scaffold Cable Support
5871ClosedIn Progress09/13/202211/03/2022API-653-2022 F1
5888ClosedIn Progress09/28/202211/08/2022API 620-1027
5894ClosedIn Progress09/28/202211/08/2022API 650-1090 Steel Pan Updates
5896ClosedIn Progress09/28/202211/08/2022API -650-1112
5897ClosedIn Progress09/28/202211/08/2022API 650-1113 Dynamic Hoop Stress Analysis Point
5907ClosedIn Progress09/28/202211/08/2022API 653-1008 Corrosion Allowance Definition
5895ClosedIn Progress09/28/202211/08/2022API-650-1104 Reconciliation of various pressure terms
5904ClosedIn Progress09/28/202211/08/2022API-650-D146
5908ClosedIn Progress09/29/202211/08/2022API-653-1011 Nominal Thickness Definition
5889ClosedIn Progress09/28/202211/08/2022INQ- 620-D008
5891ClosedIn Progress09/28/202211/08/2022INQ-620-D009
5892ClosedIn Progress09/28/202211/08/2022INQ-620-D010
5898ClosedIn Progress09/28/202211/08/2022INQ-650-D139
5899ClosedIn Progress09/28/202211/08/2022INQ-650-D140
5900ClosedIn Progress09/28/202211/08/2022INQ-650-D141
5901ClosedIn Progress09/28/202211/08/2022INQ-650-D143
5902ClosedIn Progress09/28/202211/08/2022INQ-650-D144
5903ClosedIn Progress09/28/202211/08/2022INQ-650-D145
5905ClosedIn Progress09/28/202211/08/2022INQ-650-D147
5906ClosedIn Progress09/28/202211/08/2022INQ-650-D148
5966OpenIn Progress12/24/202202/10/2023API 656 Aboveground Storage Tank Operations during Uncontrollable Environmental Events. COMMENT ONLY
5981OpenIn Progress01/31/202303/14/2023API 620-2037 Add High Manganese Cryogenic Steel to API 620, Annex Q
5982OpenIn Progress01/31/202303/14/2023API 620-2048 Liquid Penetrant Test (PT) as Substitute for Vacuum Box and Solution Film Testing
5980OpenIn Progress01/31/202303/14/2023API 620-2063 Vacuum Testing while Substantially Empty
5985OpenIn Progress02/01/202303/15/2023API 650-2028 Hydrotest requirements in Annex C&H
5983OpenIn Progress02/01/202303/15/2023API 650-2051 Liquid Penetrant Test (PT) as Substitute for Vacuum Box and Solution Film Testing
5986OpenIn Progress02/01/202303/15/2023API 650-2056 Plates Welded to Bottoms
5984OpenIn Progress02/01/202303/15/2023API 653-2041 Liquid Penetrant Test (PT) as Substitute for Vacuum Box and Solution Film Testing
5987OpenIn Progress02/01/202303/15/2023API 653-2051 Allow Limited Extension of Bottom Service Interval After Non-Complying Robotic Inspection Results
Committee ID : 18691571SCAST Refrigerated Tank Task Group (RTTG)
5497ClosedIn Progress06/08/202106/29/2021RTTG Survey on possible API 620 provisions
5539ClosedIn Progress07/21/202108/25/2021API 620-1010 Update Anchor Strap Design Guidance for Cold Storage Tanks Q & R REV-B
5882ClosedIn Progress09/19/202210/03/2022API 620 Vacuum Testing while Substantially Empty- COMMENT ONLY
5911ClosedIn Progress10/03/202210/24/2022API 620-1025 Rules for Compression-Ring Regions Exceeding 2 Inches Thickness FOR COMMENT ONLY
 
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