E P D Process

1. Determining PCR scope 

Product category rules (PCR) are done according to existing lists, and if there is no specific category, it should be developed.
When creating an EPD, there are basically two types of documents that form the framework of the EPD application.
The general product classification rules define the contents of EN 15804 and describe project reporting requirements and calculation rules for life cycle assessment when creating EPDs. The general of product category rules apply to all products and must be followed.
In specific PCR instructions, product specifications are made that, within a defined range, must apply to all products. It specifies and complements the PCR directive EN 15804, which applies to all construction products, in specific product areas and serves as a template for creating EPDs.
The draft is sent to the PCR committee for approval. After the PCR committee approves the draft, the PCR guidelines can be used.

2. Performing LCA based on PCR

During the development and implementation of an EPD for a product, environmental measures from a life cycle perspective should be described to highlight the importance of product life cycle assessment. Life cycle assessment can be done by the product manufacturing company or with the help of an independent consultant. In any case, the approval and issuance of the EPD certificate are completely independent of the related measures.
Life cycle assessment is done based on international principles provided by ISO 14040 and 14044 series standards.

3. Compile information in EPD

All the results obtained in the life cycle assessment and the information related to the reference PCR and general program instructions should be included in the EPD report. These reports may be prepared by the EPD applicant company itself or with the help of a consultant. In general, the content framework of the EPD report should include the following (of course, the design and layout can be done according to the company's taste or the approving organization):

• In accordance with the requirements and guidelines of the ISO 14020 standard, including the general principles of environmental declarations.
• Be defensible, accurate, and relevant, and avoid incomprehensible and unclear content.
• In the EPD report, refrain from bringing content that includes the announcement of rank or level, as well as a comparison report with other similar products.
• The EPD report is published in English, although it is free to publish in other languages ​​besides English.
• If a company creates EPDs for similar products and these products have the same PCR, they can all be included in one EPD report, but under certain conditions.

4. Verification of LCA & EPD

Verification of the data obtained from the product life cycle assessment, and other information provided (including environmental information) in the EPD is done based on the guidelines of the public program and the valid reference PCR. Certification of the EPD process must be performed by an accredited certification body. The verification process must be carried out by an approved individual verifier or an accredited certification body with knowledge and experience of the product types, industry, and relevant product standards covered by the EPD and its geographic scope.

5. Certification & Publication 

After the verification of the EPD by the third-party certification organization, the data is published in the form of a report and is available to interested people and stakeholders.