Cal. Health & Safety Code § 25121.3

(a) “Remote site” means a site operated by the generator where hazardous waste is initially collected, at which generator staff, other than security staff, is not routinely located, and that is not contiguous to a staffed site operated by the generator of the hazardous waste or that does not have access to a staffed site without the use of public roads. Generator staff who visit a remote location to perform inspection, monitoring, or maintenance activities on a periodic scheduled or random basis, less frequently than daily, are not considered to be routinely located at the remote location.
(b) Notwithstanding this chapter or the regulations adopted by the department pursuant to this chapter, a generator who complies with the notification requirements of subdivision (d) of Section 25110.10 may hold hazardous waste at the remote site where the hazardous waste is initially collected, or at another remote site operated by the generator, while en route to the consolidation site, if all of the following requirements are met with respect to the hazardous waste:
1. (1) The hazardous waste is a non-RCRA hazardous waste, or the hazardous waste or its management at the remote site is otherwise exempt from, or is not otherwise regulated pursuant to, the federal act.
2. (2) The requirements of subdivision (b) of Section 25110.10 are met.
3. (3) All personnel handling hazardous waste at any remote site complete health and safety training equivalent to the training required under Section 5194 of Title 8 of the California Code of Regulations, prior to being assigned to handle hazardous waste.
4. (4) A description of the actions that the generator’s personnel will take to minimize hazards to human health and safety or to the environment from fires, explosions, or any unplanned release of hazardous waste or hazardous waste constituents to air, soil, or surface water at the remote site where the hazardous waste is being managed shall be included in the contingency plan for the consolidation site. A single generic description of response actions may be used for all similar remote sites associated with a single consolidation site.
5. (5) As soon as the generator begins to actively manage the hazardous waste at the remote site, the generator places the hazardous waste in a container meeting the requirements of the United States Department of Transportation applicable to containers used to transport hazardous waste, and the containers are managed in accordance with the regulations adopted by the department regarding the management by generators of containers used to hold hazardous waste.
6. (6) The containers used to hold the hazardous waste at the remote site are labeled, in accordance with the regulations adopted by the department pertaining to labeling requirements for generators, as soon as the hazardous waste is placed in the container.
7. (7) The generator makes a reasonable effort to minimize the possibility of unknowing or unauthorized entry into the area where the hazardous waste is held at the remote site. If the remote site is located within one mile of a residential or commercial area, or is otherwise readily accessible to the public, the area where hazardous waste is held at the remote site shall at all times be supervised by employees or agents of the generator or otherwise secured so as to prevent unknowing entry and to minimize the possibility for unauthorized entry.
(c) If the management of hazardous wastes at a remote site does not meet all of the conditions specified in subdivision (b), the hazardous waste shall be subject to all other applicable generator and facility requirements of this chapter and the regulations adopted by the department to implement this chapter.