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ESA Distributor Information Bulletins

The Electrical Safety Authority releases Bulletins periodically to quickly communicate new information to the Local Distribution Companies and other distribution industry participants.  These bulletins are categorized as Safety Bulletins and Information Bulletins.

Safety Bulletins identify issues such as equipment failures and safe work practices.  Information Bulletins provide updates on Regulatory requirements and other general industry issues. 


The Electrical Safety Authority produces reports and other documents related to Ontario Regulation 22/04 or other industry issues.  These documents will report on ESA’s regulatory activity or provide additional information to the industry from a working group’s endeavours or other research activities.

The Meter Safety Due Diligence Report can be found on the Industry Issues page.

Bulletin NumberBulletin Title/DescriptionDownload
DB-03-20 COVID-19 - Updates for Audits and Declarations of Compliance Download
DB-02-20 Approved Auditors Download
DB-01-20 Previous Editions of the Overhead and Underground Standards Download
DB-05-19 Audit & DoC Due dates - 2019 Group 3 Download
DB-05-19 Audit & DoC Due dates - 2019 Group 2 Download
DB-05-19 Audit & DoC Due dates - 2019 Group 1 Download
DB-04-19 Pad‐mount Equipment Protection & Construction Projects Download
DB-03-19 Electrical Equipment Near Combustible Gas Equipment Download
FN-03-19 3-Phase, 3-Wire, Solidly-Grounded Wye Customer Services Download
DB-02-19 Certificate of Approval Requirements Download
DB-01-19 Unused vs Used Distribution Equipment Download
DB-05-18 Energized Temporary Distribution Work Download
FN-02-18 (Phase 2) 3-Phase, 3-Wire, Solidly-Grounded Wye Customer Services - Complete Download
FN-02-18 (Phase 2) 3-Phase, 3-Wire, Solidly-Grounded Wye Customer Services - Corrective Action Proposal Worksheets Download
FN-02-18 (Phase 2) 3-Phase, 3-Wire, Solidly-Grounded Wye Customer Services - Proposals Download
DB-04-18 Electrical Work and Service Connections Download
DB-03-18 Engineering Practices and Regulation 22/04 - Sections 4 & 5 Download 
DB-02-18 Distribution Stations Standard - CAN/CSA-22.3 No. 61936-1 Download
FN-01-18 (Phase 1) 3-Phase, 3-Wire, Solidly-Grounded Wye Customer Services Download
DB-07-17 LDC/ESA Communications for Code Side Safety Concerns Download
DB-05-17 Factors to Consider for Damaged Customer’s Services During Emergencies Download
DB-04-17 Meter Base Mounted Transfer Devices Download
DB-02-17 Mitigation of pole top fires Download
DB-08-16 UPDATED: OESC - ESA Program for Acceptance of Retrofitted Luminaires Download
DB-06-16 Regulation 22/04 or Ontario Electrical Safety Code? Download
DB-05-16 Connection Authorizations Download
DB-04-16 EV Charging Stations - Reg. 22/04, 570/05 and OESC Requirements Download
DB-03-16 Life Saving Equipment Damage From Temporary Overvoltage Download
DB-02-16 Certificate of Deviation – Certified Lists Download
DB-11-15 Reporting Meter Failures (750V or less) Download
DB-07-15 “Materially Insignificant” Alterations Download 
DB-06-15 General Mechanical Protection Information Power Cable Guard Download
DB-05-15 Ice and Electrical Meters Download
DB-04-15 Guy Composite Insulators for use with Phase Conductors Download
DB-03-15 Sensus iConATM Generation 3.2 Remote Disconnect Meters Download
DB-02-15 Marking of Guys Download
DB-01-15 In-Field Equipment Refurbishment Download
DB-05-14 Major Equipment Refurbishment Download
DB-04-14 Installation Methods – Sags and Tension Overhead Conductor Download
DB-03-14 Installation Methods – Guy Anchors Download 
DB-02-14 Process for Safety Concerns on Joint Use Poles Download
DB-01-14 Barrier Support Structures and Grounding Requirements Download
DIB-02-13 Metering Standards for C-I installations  Download
DIB-01-13 LDC Attachments on 3rd Party Poles  Download
DIB-13-12 Distribution System Control Component Setting & Reg 2204 Requirements  Download
DIB-12-12 Introduction of Utility General Inspections  Download
DIB-11-12 Certificates of Deviation Approval  Download
DIB-10-12 Attacher Developed Plans - Work Instructions and LDC Review Download
DIB-08-12 Pole - Soil Tamping Download
DIB-07-12 DDI Process Updates Download
DIB-05-12 Distributor Owned Wood Poles Approval Download
DIB-03-12 Guidelines: Trimming Trees Around Powerlines & Planting Under or Around Powerlines & Electrical Equipment Download
DIB-01-12 Interconnection of electric power production sources - OESC Requirements (UPDATED) Download
DIB-01-11 Section 7-3.3.2 Additional Guideline Information Download
DIB-08-10 Standard Operating Procedure Review Download
DIB-06-10 Billing Meter Location Download
DIB-05-10 Distribution Substation & Like-for-Like Download
DIB-04-10 Standards Release: Electric Utility Workplace Electrical Safety Download
DIB-01-10 Audits and Temporary Installations Download
DIB-09-09 Distributed Generation (Feed-in Tariff Program Codes Publications and Standards) Download
DIB-08-09 QA Working Around Meter Bases Download
DIB-11-08 Clarifying the DDI Process Download
DIB-07-05 Demarcation Point Download
DIB-04-05 Contacting ESA Download
DIB-04-06 ABB Transformer Certification Download
DIB-01-08 RSEI Reporting Form Privacy Policy Download
DIB 03-07 Ontario Regulation 438_07 Product Safety Download
DIB 01-07 Electricity Act and Marijuana Grow Operations Download
DIB 10-06 Customer Owned Equipment (Meter Bases) Download
DIB 08-06 Re-Energizing Feeders after Recloser Lockout Download