An operator shall file with the Director a burial cell closure certification within 30 days after placing final cover over the mining waste tires under R18-13-1203(B). The certificate shall contain a statement by the operator that no additional tires will be buried in the burial cell and a statement by an Arizona registered engineer certifying that the cover requirements of R18-13-1203 have been met.
Ariz. Admin. Code § R18-13-1205