Electrical equipment is evaluated in accordance with the requirements of National Electrical Code (NEC) and Underwriters Laboratories (UL) standards.

The equipment manufacturer (for general or one-time approval) and end user of the equipment (for one-time approval) can apply for equipment approval.

Yes. In all cases, you are required to provide the equipment for evaluation.

General or laboratory approval is generally for identical mass produced equipment with a one-year approval time, after which a re-evaluation would be required for another one-year period, if the applicant would like to maintain approval.

One-Time approval is for field installed product(s) at a specific location. The approval for the product is limited to the location in which it's installed, but no annual renewal is required, as is the case of general approval. 

UL Standard is an Underwriters Laboratories standard used as the basis of evaluation and testing of equipment.

LARR stands for "Los Angeles Research Reports." LADBS approves alternate building materials or products that are at least equivalent to the materials prescribed in the code in terms of quality, effective time period of fire resistance, strength, effectiveness, durability and safety. Approved materials are published as LARR.

A letter of correction will be issued, either asking for additional information or indicating what tests or evaluations did not pass and may necessitate changes or modifications to the equipment.

An application for the Electrical Test Lab (ETL) may be submitted for evaluation.

Personal, company or a cashier's check from a United States bank, made payable to "City of Los Angeles."

Different types of approval are: Laboratory Approval, Field One-Time Approval, and General Approval