Iowa Admin. Code r. 21-44.8
44.8(1) Storage container labeling and protection. Upon delivery of the bulk pesticide, the registered product label shall be affixed in a prominent location on the bulk pesticide storage container and designed to remain intact and legible through active use of container.
Locking devices are required on bulk pesticide storage containers and all valves shall be closed and locked when the facility is left unattended.
Containers, pipes and valves must be protected against reasonably foreseeable risks of damage by trucks and other moving vehicles.
Containers used for pesticide storage and handling shall be of materials and construction compatible with the pesticide stored and the conditions of storage and maintained in a manner as to minimize the possibility of a spill.