Notification of Schedule 11 hazardous chemicals This form is to be used by the person conducting a business or undertaking (PCBU) at a workplace to notify SafeWork NSW when: 1.Hazardous chemicals are used, handled or stored at the workplace in quantities that exceed manifest quantities, as specified in column 5 of table 11.1 of Schedule 11 of the WHS Regulation. 2.A notification to the Resources Regulator for Mine and Petroleum sites. 3.There will be a significant change to a current notification record in the risk of using, handling or storing the Schedule 11 hazardous chemicals. A significant change includes: a change to the quantity, location or manner of storage of chemicals, or when the affected chemicals are of a quantity greater than the placard quantity for that chemical or group of chemicals. 4.A new owner and/or PCBU has taken control of a site. 5.Requesting a closure of record or when hazardous chemicals no longer exceed manifest quantities, as specified in column 5 of table 11.1 of Schedule 11 of the WHS Regulation, or cease to be used, handled or stored at the workplace. 6.There is abandonment of an underground tank, partially underground, or fully mounded tank that was used to store flammable gases or flammable liquids. 7.There is a need to change contact details, or emergency contact details. 8.Your notification certificate is lost, stolen, damaged, not received or if there was a printing error.