Zero waste is a phrase that has been used loosely enough to mean very little. Certification is one of the few things that pushes back on that, because it replaces a claim with a threshold, a period and an assessor.
What TRUE actually asks for
TRUE, Total Resource Use and Efficiency, is a zero waste certification administered by Green Business Certification Inc. It assesses a defined facility or project boundary, and it is built around a minimum performance level of at least 90 per cent diversion from landfill, incineration and the environment across a twelve month period, together with additional programme requirements.
Three distinctions are worth holding onto. Diversion is broader than recycling, so reuse, donation and composting count. Incineration is excluded from diversion, which means a zero waste to landfill position achieved through energy recovery does not satisfy it. And because performance is measured over twelve months, a good quarter does not qualify a site.
Source: GBCI, TRUE certification: zero waste, the next frontier
Why the bin is the wrong place to start
The arithmetic of a 90 per cent threshold is unforgiving. If a site receives a material with no diversion route, no amount of segregation discipline helps. The only available moves are to change the material, change the supplier, or accept that it caps the site's performance.
That is why sites that reach high diversion levels tend to have done three upstream things long before an assessment: they know what arrives and in what packaging, they have removed or substituted the formats with no route, and they have written acceptance requirements into supply agreements so new problem materials do not reappear.
Procurement changes that tend to matter most
- Removing mixed-material and heavily laminated packaging from inbound goods where an alternative exists.
- Standardising packaging formats across suppliers so a site handles fewer distinct materials in larger, cleaner volumes.
- Agreeing take-back or reuse of transit packaging, which usually moves more tonnage than any front of house intervention.
- Specifying that deliveries arrive without unnecessary secondary packaging, and measuring compliance.
- Writing the evidence requirement into the contract, so weights and destinations arrive routinely rather than on request.
Evidence that stands up
An assessment will test whether your numbers are real. That means measured data where it is available, a documented method for any estimates or conversions, records the programme accepts, destinations that can be traced, and consistency between what a contractor reports and what the site records. Estimates are not automatically disallowed, but an undocumented conversion from container volume to tonnes is very different from a stated method applied consistently and evidenced.
Rejected or contaminated loads need to appear too, because a load downgraded at a facility is not diverted simply because it left site in the right bin. This record keeping is worth fixing regardless of whether certification is ever pursued.
Is it worth it?
Certification is not the only sensible destination. For some organisations the honest answer is that the operational discipline is worth pursuing and the certificate is not. What the framework offers, even unused, is a definition strict enough to stop a zero waste ambition quietly becoming a change of disposal route.