Are hazardous waste generators allowed to keep copies of manifests in an electronic format?
Yes, businesses and institutions that generate and ship hazardous waste off-site may keep copies of manifests in an electronic format to comply with the recordkeeping requirements in ss. NR 662.040, 662.193 or 662.220, Wis. Adm. Code. Manifest records must be kept on-site for at least three years and be easily accessible for review.