Particulate respirators are the simplest, least expensive, and least protective of the respirator types available. These respirators only protect against particles. They do not protect against chemicals, gases, or vapors, and are intended only for low hazard levels.
A factory tow package usually includes heavy duty rear shocks/springs and an auxiliary transmission cooler in addition to the tow hardware itself, and sometimes they include a full size spare tire too. When a dealer installs it they just put on the hitch and wiring plug.
The CHP's TSA allows members of the towing industry to participate in a rotational tow list to equitably distribute service calls from the public through CHP officers. The purpose of the TSA is to meet the needs of the public, the towing industry, and the Department.