Broken chain
The Home Quality Mark One, Technical Manual SD239, England, Scotland & Wales, published by BRE in 2018 suggests that the term ‘broken chain’ refers to a situation:
'Where a construction product (or constituent construction product) is certified, but is supplied via one or more downstream organisations that have no relevant certification. In this situation, unless the broken chain requirements are met, the certification is not accepted by BREEAM.'
[edit] Related articles on Designing Buildings
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