Waste Classification – ABNT NBR 10004:2024

The LCR – Waste Classification Report is a document prepared based on ABNT NBR 10004:2024 that provides important information about the waste. Its preparation is the responsibility of the waste generator and must be prepared and signed by a duly qualified technical professional registered with the respective professional council.

One example of a professional qualified to prepare this document is a Chemical Engineer, who must sign and issue a statement of technical responsibility for the report. This may be issued as an ART – Anotação de Responsabilidade Técnica (Technical Responsibility Annotation) through CREA – Regional Council of Engineering and Agronomy, or as an AFT – Anotação de Função Técnica (Technical Function Annotation) through CRQ – Regional Council of Chemistry.

The LCR applies to all types of waste, except:

• Soil from earthmoving works that is moved within the construction site and used in its natural condition;

• Radioactive waste;

• Material relocated within the bed of a water body through dredging.

Waste classification according to hazardousness involves identifying the process or activity that generated the waste, the concentrations of its constituents, and their respective characteristics, as well as comparing these constituents with lists of wastes and substances whose impacts on human health and the environment are known.

Waste can be classified as:

• Class 1 Waste – Hazardous;

• Class 2 Waste – Non-Hazardous.

To be considered hazardous, waste must have one or more of the following characteristics:

• Flammability;

• Corrosivity;

• Reactivity;

• Pathogenicity;

• Toxicity, including the following toxicological endpoints:

  • Acute toxicity;

  • Mutagenicity;

  • Carcinogenicity;

  • Reproductive toxicity or teratogenicity;

  • Specific Target Organ Toxicity (STOT);

  • Aspiration toxicity;

  • Ecotoxicity.

In addition to the classification, the LCR provides other relevant information about the waste, such as:

• Waste generator information;

• Sampling information, when applicable;

• Waste identification;

• Process of origin/generation;

• Identification of the sample(s) and waste stream(s) considered in the report;

• Raw materials and inputs used in the originating process;

• Waste classification code according to the applicable LGR (List of Waste);

• List of substances present in the waste;

• Hazard categories applicable to the substances;

• Sources of information and references supporting the identified hazard categories;

• Characteristics that confer hazardousness to the waste;

• Date of issuance of the report;

• Name of the technical professional responsible for the report;

• Reference ART number;

• Signature of the responsible technical professional.

Based on the waste classification, the generator will have the necessary information to also prepare the FDSR – Safety Data Sheet for Waste, as well as to adopt the appropriate measures for waste management, commercialization, transportation, and final disposal, ensuring compliance with applicable legislation and current standards.