TRAINING GUIDE

SSSTS vs SMSTS: Site Safety Training for Electricians

SSSTS and SMSTS are the industry-standard site safety qualifications. This guide covers which one you need, what the courses cover, costs, renewal, and how they fit into your electrical career.

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11 min readUpdated 2026-05-18Andrew Moore, Founder of Elec-Mate

Written and reviewed by Andrew Moore, founder of Elec-Mate, against BS 7671:2018+A4:2026, IET Guidance Note 3 and the IET On-Site Guide.

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Key Takeaways

  • 1SSSTS (Site Supervisors Safety Training Scheme) is a 2-day course for site supervisors and foremen. SMSTS (Site Management Safety Training Scheme) is a 5-day course for site managers and project managers. Both are run by CITB (Construction Industry Training Board).
  • 2SSSTS is for anyone who supervises work on site — electricians who run small teams, foremen, and charge hands. SMSTS is for those with management responsibility for health and safety on site.
  • 3Most major construction sites require at least one person with SMSTS on site at all times. Many main contractors require electricians in supervisory roles to hold SSSTS as a minimum.
  • 4Both certificates are valid for 5 years. Renewal requires a shorter refresher course — 1 day for SSSTS-R and 2 days for SMSTS-R. Do not let your certificate lapse.
  • 5The courses cover health and safety law, risk assessment, method statements, CDM Regulations, working at height, manual handling, and site-specific hazards. They are practical courses, not academic — focused on real-world site management.
01 · Training Guide

What Are SSSTS and SMSTS?

SSSTS (Site Supervisors' Safety Training Scheme) and SMSTS (Site Management Safety Training Scheme) are health and safety qualifications run by CITB (Construction Industry Training Board). They are the industry-standard site safety qualifications for anyone in a supervisory or management role on a UK construction site.

For electricians, these qualifications become relevant when you step beyond hands-on installation work into supervision, project management, or running your own team. Most major construction sites require anyone in a supervisory role to hold at least SSSTS, and site managers to hold SMSTS.

These are not electrical qualifications — they cover general construction health and safety. But they are essential for electricians who work on or manage projects on construction sites.

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02 · Training Guide

SSSTS — Site Supervisors' Safety Training Scheme

SSSTS is designed for people who have, or are about to take on, supervisory responsibilities on a construction site. For electricians, this typically means:

  • Electricians who supervise one or more other workers on site
  • Foremen and charge hands on electrical contracts
  • Self-employed electricians who manage subcontractors
  • Apprentices moving into their first supervisory role

The course runs over 2 days and is assessed through a mix of group exercises, case studies, and a short written assessment. There is no formal exam — the assessment is continuous throughout the course. Most people who attend and participate pass.

03 · Training Guide

SMSTS — Site Management Safety Training Scheme

SMSTS is the higher-level qualification for people with management responsibility for health and safety on a construction site. For electricians, this means:

  • Project managers running electrical contracts
  • Business owners managing teams of electricians
  • Contracts managers with overall site safety responsibility
  • Anyone named as Principal Contractor under CDM Regulations

The course runs over 5 days (usually one full week) and goes deeper than SSSTS into health and safety legislation, CDM (Construction Design and Management) Regulations, risk management, and management responsibilities. Assessment is through group exercises, case studies, and a written assessment on the final day.

04 · Training Guide

SSSTS vs SMSTS: Side-by-Side Comparison

SSSTS

  • 2-day course
  • For site supervisors and foremen
  • Cost: 200-400 pounds
  • Refresher: 1 day (SSSTS-R)
  • Valid for 5 years
  • Covers supervisor-level H&S duties
  • Group exercises and continuous assessment

SMSTS

  • 5-day course
  • For site managers and project managers
  • Cost: 400-700 pounds
  • Refresher: 2 days (SMSTS-R)
  • Valid for 5 years
  • Covers management-level H&S duties and CDM
  • Written assessment on final day
05 · Training Guide

Who Needs Which?

Here is a practical guide:

  • Sole trader doing domestic work: Neither is strictly required, but SSSTS is useful if you ever work on sites managed by a main contractor.
  • Electrician working on commercial sites: SSSTS if you supervise anyone (including apprentices). Not required if you are working under someone else's supervision, but increasingly expected.
  • Running a small team (2 to 5 people): SSSTS as a minimum. SMSTS if you are the principal contractor on projects.
  • Managing projects or running a larger business: SMSTS. This is expected by clients, main contractors, and your insurers.

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06 · Training Guide

What the Courses Cover

Both courses cover health and safety topics relevant to construction sites:

Health and Safety Law

Health and Safety at Work Act 1974, Management of Health and Safety at Work Regulations, and how they apply to construction. Your duties as a supervisor or manager. Enforcement and penalties.

Risk Assessment and Method Statements

How to carry out risk assessments, write method statements (RAMS), and implement safe systems of work. Practical exercises in identifying hazards and determining control measures.

CDM Regulations (SMSTS only — in depth)

Construction (Design and Management) Regulations 2015. Roles and responsibilities of client, principal designer, principal contractor, contractors, and workers. Construction phase plans and health and safety files.

Site-Specific Hazards

Working at height, confined spaces, manual handling, asbestos, noise, vibration, fire safety, and electrical safety (from a management perspective). How to manage these risks on a live construction site.

07 · Training Guide

Costs and Duration

SSSTS (full course)2 days | 200-400 pounds
SSSTS-R (refresher)1 day | 150-250 pounds
SMSTS (full course)5 days | 400-700 pounds
SMSTS-R (refresher)2 days | 250-400 pounds

CITB-registered employers may be eligible for grant funding that covers a significant portion of the course cost. Check with CITB or your training provider about grant eligibility. The courses are also tax-deductible as a business expense for self-employed electricians.

08 · Training Guide

Renewal and Refresher Courses

Both SSSTS and SMSTS certificates are valid for 5 years. To renew, you must complete a refresher course before your certificate expires:

  • SSSTS-R: 1-day refresher course. Covers updates to health and safety legislation and refreshes the core content. Book at least 3 months before your certificate expires.
  • SMSTS-R: 2-day refresher course. Covers legislative updates and revisits CDM Regulations and management responsibilities. Book at least 3 months before expiry.
  • If you let it lapse: If your certificate expires before you complete the refresher, you cannot take the refresher — you must complete the full course again (2 days for SSSTS, 5 days for SMSTS). Do not let this happen.
09 · Training Guide

For Electricians: Manage Site Safety Professionally

Whether you hold SSSTS or SMSTS, you need professional tools to manage health and safety documentation on site.

Health and safety documentation on your phone

Elec-Mate's AI health and safety tools help you create risk assessments, method statements, and site safety documentation.

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Frequently Asked Questions About SSSTS and SMSTS

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