A classification with a specific meaning
NR-16 uses periculosidade for the activities and operations addressed by its annexes. It is not synonymous with every situation a safety professional might describe as dangerous. Classification has particular employment consequences and relates to article 193 of the CLT. It also differs from insalubridade under NR-15, which applies different criteria. An assessment may need to examine both frameworks without combining their conclusions or terminology.
Examine the activity and applicable annex
The annexes address situations involving, among others, explosives, flammables, electricity, personal or property security, motorcycles and traffic officers. Each defines its scope and exclusions. A job title does not automatically determine classification: actual duties, exposure conditions and relevant risk areas need examination. Copying a conclusion from another company can overlook decisive differences in the way work is organised or carried out.
The technical report
The employer is responsible for characterisation or exclusion of periculosidade through a report prepared by an occupational physician or occupational safety engineer under the applicable framework. The report should make the examined circumstances and reasoning understandable. Section 16.3.1, effective from 3 April 2026, requires the classification report to be available to workers, the relevant occupational-category unions and labour inspection. Availability does not replace the need for sound technical content.
Allowance and prevention are different decisions
NR-16 provides for a 30% allowance in conditions of periculosidade, using the salary basis defined in its text. Payment does not authorise an employer to maintain unsafe conditions. Risk control remains necessary. Equally, introducing one preventive measure does not automatically establish that the legal classification has disappeared. That conclusion requires the circumstances and applicable legal category to be reassessed with appropriate technical support.
A review example
An employee moves from administrative duties to work-related motorcycle journeys. Review identifies the new tasks and applicable annex rather than retaining the previous job’s documentation unchanged. The assessment distinguishes work journeys from situations excluded by the regulation and examines actual conditions. This introductory article cannot determine an individual employee’s entitlement or resolve a disputed payment without that specific examination.
Keeping conclusions current
Changes in activities, installations or legislation may affect the analysis. Retain the report version, reasoning and changes considered. Disagreements require the relevant professional and employment-law processes. A generic list of dangerous job titles cannot replace the classification required for the particular circumstances or remove continuing prevention responsibilities.
