The awkward cases, described honestly
A zero-landfill rule is only meaningful when it is tested. Pallets nailed to foam-backed carpet: we separate them and pay a specialist to take the composite, which costs us money on that load. Stacks that spent two winters on bare dirt, where the bottom layer is rotten and full of gravel: gravel destroys grinder knives, so that material goes through slower hand separation, which is pure cost.
Painted wood mixed into a clean load becomes a separate, lower-value biomass stream rather than mulch. The rule holds in each case, because a rule with a cost exemption written into it is just a target.
