Can someone please tell me how a LEED specification specialist establishes the recycled content requirement? The information below is from a specification for 800,000 s/f of ceiling tile, where the total would add up to 25% Total Recycled Content.

“They must also meet LEED criteria defined as follows:
• MRc4: Provide acoustical ceilings with a minimum post-consumer recycled content of 5% and a minimum pre-consumer recycled content of 40%.
• MRc5: Provide acoustical ceilings with regional content.”

LEED MATERIALS AND RESOURCES CREDIT 4.1 does not say anything about the breakdown between Post and Pre Recycled content. It is ONLY calculated on the “Value of the recycled content”. Can anyone give me a reason why a ceiling tile with 66% Pre-Consumer and 0% Post-Consumer would be rejected? The total recycled content would be 33% which would surpass the 25% requirement.

Thanks