Voluntariness - to be non-mandatory in nature.

Transparency - through all stages of development and operation of the programme.

Accessibility to all interested parties - open to all potential applicants fulfilling programme requirements.

Open stakeholder dialogue and consultation about PCR - to carry out a formal and open stakeholder consultation process to receive input and comments on suggested PCR documents from all interested parties.

Product functionality - to ensure that the product functionality, i.e. the intended use of the product and related levels of performance, is taken into account.

Scientifically-based - building on a methodology to develop EPDs based on scientific accepted approaches for LCA which reflects and communicates the significant environmental aspects relevant to the product.

Confidentiality - to guarantee full confidentiality of specific information which has been identified as such by an organisations.

Cost-effectiveness - to be based on open, well-established, market-oriented and internationally recognised systems for verification and registration.