Waste Stream Audit

That's an interesting question, and unfortunately I don't have a definitive answer. It'd be great if someone else could chime in to help clear this up. In the meantime here's what I'm struggling with about these requirements:

In LEED v4, a waste audit is required only if you don't achieve a 75% ongoing consumables diversion rate or higher. And the waste audit isn't it's own credit anymore... it's a requirement within MRp1.

In the Recertification Guidance (October 2013), a waste audit is required only once every 5 years if v2009 MRc7 is achieved (where the threshold is 50% diversion). Otherwise you have to do it annually.

I think there's a few scenarios here that raise some questions...

Scenario 1: You achieve 75% - 100% diversion, and you'll submit for recertification in under 5 years. This scenario seems the most straightforward - you wouldn't have to complete an audit at all, as long as it's been less than 5 years since your previous audit.

Scenario 2: You achieve 75% - 100% diversion, but your recertification period is 5 years. You could skip the audit under the requirements of v4 MRp1, but do you still have to do an audit per the Recertification Guidance since it's been 5 years?

Scenario 3: You achieve 50% - 74% diversion, but you're in the v4 rating system where there's no MRc6. Do you have to do only one audit for v4 MRp1, rather than annual audits, since you've hit the 50% requirement in the Recertification Guidance?

Scenario 4: You achieve 0% - 49% diversion, but you're in the v4 rating system where there's no MRc6. Do you have to do only one audit to meet v4 MRp1, or do you have to do annual audits to comply with the Recertification Guidance?

It seems like your requirements are likely to change depending on how long your recertification cycle is and what diversion rate you're achieving. Reaching out directly to GBCI/USGBC may be a good idea in this case... please let us know what you find out if you do!