The Safety Culture Ladder (SCL) is a Dutch assessment method that measures safety awareness and conscious safe conduct, so it rates culture and behaviour rather than the existence of a management system. It was originally developed by ProRail for the rail sector and has been managed by NEN since 1 July 2016, which made it available across industries. The scheme is widely known by its former name, the Veiligheidsladder. The current version is SCL 2.0, and since 1 January 2025 certification is only issued against 2.0.
Assessment runs over five levels, called ladder rungs or treden, and certification is possible from rung 2 upwards. The rungs describe how far safety has moved from paper into practice: rung 1 is pathological, where safety barely registers; rung 2 is reactive, with attention that is ad hoc and short-lived; rung 3 is calculating, where the focus is on systems and data but not yet on implementation on the shop floor, and involvement sits mainly with managers; rung 4 is proactive, with company-wide safety awareness; and rung 5 is progressive, where safety carries the same weight as cost, time and quality in every business process. Rung 3 is therefore the rung where the paperwork is in order and the workplace has not caught up, which is exactly the gap an assessment probes.
A certificate comes from an audit by an SCL-licensed certification body and is valid for three years, on condition that a follow-up audit takes place each year. Smaller organisations can use SCL Light, a reduced-scope route that produces a statement rather than a full certificate. A self assessment is a preparation and self-declaration tool for internal use and carries no evidentiary value.
The SCL matters commercially because Dutch clients increasingly require it in procurement. Under the ViA scheme (Veiligheid in Aanbestedingen) of the Governance Code Veiligheid in de Bouw, clients that signed the code set a ladder rung as a tender condition, and the requirement cascades to contractors, suppliers and advisory firms. It applies to contracts from EUR 100,000 and to organisations with more than five employees. The required level rose from rung 2 to rung 3 on 1 July 2026, having been postponed from 1 January 2025. On that same date the Approved Self Assessment lapsed as acceptable ViA evidence, and SCL Light was added in its place, so the accepted instruments are now SCL and SCL Light, chosen according to the size of the organisation.
A gap analysis on the SCL compares current practice with the requirements of the target rung and identifies what has to change before an assessment. Note that the SCL is a separate scheme from ISO 45001: ISO 45001 certifies an occupational health and safety management system, while the SCL rates the maturity of safety culture and behaviour. An organisation can hold one without the other.
Tidal Control does not currently support the Safety Culture Ladder as a framework in the platform. This entry is here because the scheme comes up alongside the standards we do cover, including ISO 45001.