Final answer:
The employer is responsible for providing personal protective equipment to pesticide handlers to ensure a safe work environment as mandated by OSHA.
Step-by-step explanation:
The responsibility for providing personal protective equipment (PPE) to pesticide handlers falls on the employer of the pesticide handler. Under the rules set forth by the Occupational Safety and Health Administration (OSHA), employers are required to ensure a safe work environment, which includes providing necessary PPE to protect workers from potential hazards. In the context of handling pesticides, this might include protective clothing, gloves, and respirators to prevent exposure through inhalation or skin contact.