• Specified products must meet BASTA criteria.
• This can be veryfied by the products be included in the BASTA register or other reliable verifying documentation be presented
• Where it is not possible to choose a product from the BASTA register then it is permitted to use products from BASTA´s BETA register
• Deviation from these requirements should be reported

The above specification has the effect that when a product does not meet the criteria, or is not included in BASTA, then it is necessary to make an assessment of the alternatives and how any potential risks associated with the product should be handled.

It is not reasonable to stipulate that only products registered with BASTA should be used in a construction project. Sometimes a certain technical function requires the use of hazardous substances, sometimes certain products can have other environmental properties that are particularly good and the product may therefore be a wise choice despite not featuring in the database. But when a product is not registered in the BASTA database then this should be interpreted as a signal for caution.

In order to limit the requirements to the most important product groups, we have developed a suggested list of priority product groups. We recommend all users of the BASTA system to take extra care to ensure that the criteria are met for these products.