Directive 2000/14/EC — Outdoor Noise Directive (OND)
5 minutes


Structured Assessment Logic (SAL) – Your Roadmap for Compliance
SAL Type XI – Parameter-driven Regime – Non-NLF-based Parameter-driven Framework with classification logic
Mapping of Directive 2000/14/EC
To implement the requirements of OND 2000/14/EC in a transparent and structured way, the regulatory assessment process can be represented using a Structured Assessment Logic (SAL). This logic ensures that environmental noise emission requirements are systematically evaluated, measured, documented, and demonstrated through a structured conformity assessment process.
The SAL translates the Directive into a repeatable compliance workflow linking product qualification, acoustic assessment, conformity assessment procedures, technical documentation, and CE marking obligations.
The SAL comprises the following steps:
Product qualification – Is the equipment within the scope of the Directive 2000/14/EC?
Classification – Determination of the applicable OND equipment category
Determination of applicable noise emission requirements and prescribed measurement methodology
Conformity assessment procedure selection
Technical documentation – Which records demonstrate compliance?
Indication of the guaranteed sound power level according to Annex IV
Series production – Maintaining acoustic conformity
EU Declaration of Conformity & CE marking – Official confirmation of compliance, ready for the EU market.
Note: SAL is not an end in itself. It provides a repeatable methodology that translates regulatory principles into a clear, structured assessment logic.
This diagram illustrates the SAL workflow visually:
Product qualification
↓
Classification under Article 12 or Article 13
↓
Determination of applicable noise emission requirements and prescribed measurement methodology
↓
Conformity assessment procedure selection
↓
Technical documentation
↓
Indication of the guaranteed sound power level according to Annex IV
↓
Series production control
↓
EC Declaration of Conformity & CE marking
Parallel applicability of legislation / Norm hierarchy and conflict of laws
Other Union harmonisation legislation may need to be taken into account. As part of the applicability assessment, it must be determined whether such acts apply in parallel or whether, due to rules of precedence and lex specialis principles, individual requirements or an entire harmonisation act is displaced in favour of another. Where no normative conflict exists, the respective requirements apply in parallel and cumulatively.
Overview: Directive 2000/14/EC
Number: 2000/14/EC
Title: Noise emission in the environment by equipment for use outdoors
Publication: OJ L 162, 3.7.2000, p. 1
Purpose: Harmonised environmental noise regulation for outdoor equipment
Guidance: Guidelines for the application of Directive 2000/14/EC
Scope
The Directive applies to:
Equipment for use outdoors
Placed on the market as a complete functional unit
Suitable for its intended use
Certain non-powered attachments are excluded unless specifically listed (e.g. hydraulic hammers or hand-held concrete breakers).
The Directive does not apply to:
Equipment primarily intended for transport by road, rail, air, or waterways
Equipment specifically designed for military, police, or emergency service purposes
Classification
Before conformity assessment, the equipment must be classified under either Article 12 or Article 13 of Directive 2000/14/EC.
This classification determines:
whether mandatory noise limit values apply,
whether the equipment is subject only to noise marking obligations,
and which conformity assessment procedures are available.
Determination of applicable noise emission requirements and prescribed measurement methodology
Following classification under Article 12 or Article 13, the Directive directly specifies:
the applicable regulatory noise requirements,
the permissible sound power levels (where applicable),
and the mandatory acoustic measurement procedures.
This constitutes a key structural feature of Directive 2000/14/EC ► Unlike many other EU product directives, conformity is not demonstrated through the application of harmonised standards. Instead, the Directive itself defines:
the applicable limit values,
the acoustic assessment framework,
and the prescribed measurement methodologies.
Article 12 equipment
For equipment listed under Article 12:
the guaranteed sound power levels specified in the Directive may not be exceeded,
and compliance must be demonstrated using the prescribed measurement procedures.
Article 13 equipment
For equipment listed under Article 13:
no limit values apply,
however, guaranteed sound power level to be determined and declared using the prescribed measurement methodology.
The applicable measurement procedures are laid down in Annex III and define:
operating conditions,
acoustic environment,
measurement configuration,
and determination of the guaranteed sound power level.
SAL principle: Under the OND, regulatory requirements and acoustic measurement methodology are directly embedded in the legal framework itself.Measurement methodology is therefore not merely supportive evidence, but an integral part of the conformity requirements.
Conformity assessment procedure selection
The conformity assessment route depends on whether the equipment falls under Article 12 or Article 13.
A) Equipment subject to noise limits (Article 12)
The manufacturer may choose between:
Annex VI → Internal control of production with assessment of technical documentation and periodic checking
Annex VII → Unit verification
Annex VIII → Full quality assurance
These procedures require varying levels of involvement by a Notified Body.
B) Equipment not subject to noise limits (Article 13)
The manufacturer applies:
Annex V → Internal control of production
This route does not require mandatory third-party intervention.
Technical documentation
Manufacturers must compile technical documentation demonstrating conformity with the Directive.
This typically includes:
Product identification and description
Acoustic test reports
Applied Annex III measurement procedures
Calculation of guaranteed sound power levels
Conformity assessment records
Production control measures
Copies of markings and labels
Indication of the guaranteed sound power level according to Annex IV
Series production – Maintaining acoustic conformity
Compliance must be maintained throughout production.
Manufacturers must ensure that:
Acoustic characteristics remain controlled
Production deviations do not invalidate the guaranteed sound power level
Design or supplier changes do not adversely affect noise emissions
SAL focus: Ongoing conformity requires the control of all noise-relevant product and process characteristics throughout the entire product realisation process.
CE MARKING
Mandatory before placing the product on the EU market
Must be visible, legible, and permanent
Notified Body number required if involved
Conclusion
The SAL for Directive 2000/14/EC transforms environmental noise regulation into a structured conformity assessment workflow.
It provides:
Clear scope qualification
Structured equipment classification
Defined acoustic measurement logic
Traceable determination of guaranteed sound power levels
Controlled production conformity
Transparent CE marking and environmental noise declaration
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© 2026 by Dr. Matthias K Bauer



