California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 7 - General Industry Safety Orders › Group 15 - Occupational Noise and Ergonomics › Article 105 - Control of Noise Exposure › Section 5095 - General

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a) Scope and
						Application. Article 105 establishes requirements for controlling occupational
						exposures to noise. Agriculture, construction, and oil and gas well drilling
						and servicing operations are exempt from the provisions of Sections
						5097 through
						5100.
(b) Definitions.
Action Level. An 8-hour time-weighted average of 85
						  decibels measured on the A-scale, slow response, or equivalently, a dose of
						  fifty percent.
Audiogram. A chart, graph, or table resulting from an
						  audiometric test showing an individual's hearing threshold levels as a function
						  of frequency.
Audiologist. A professional, specializing in the study
						  and rehabilitation of hearing, who is certified by the American Speech, Hearing
						  and Language Association or licensed by a state board of examiners.
Baseline Audiogram. The audiogram against which future
						  audiograms are compared.
Criterion Sound Level. A sound level of 90
						  decibels.
Decibel (dB). Unit of measurement of sound
						  level.
dBA (Decibels-A-Weighted). A unit of measurement of
						  sound level corrected to the A-weighted scale, as defined in ANSI S
						  1.4-1971 (R1976), using a reference
						  level of 20 micropascals (0.00002 Newton per square meter).
Hertz (Hz). Unit of measurement of frequency,
						  numerically equal to cycles per second.
Medical Pathology. A disorder or disease. For purposes
						  of this regulation, a condition or disease affecting the ear, which should be
						  treated by a physician specialist.
Otolaryngologist. A physician specializing in diagnosis
						  and treatment of disorders of the ear, nose and throat.
Representative Exposure. Measurements of an employee's
						  noise dose or 8-hour time-weighted average sound level that the employer deems
						  to be representative of exposures of other employees in the workplace.
Sound Level. Ten times the common logarithm of the
						  ratio of the square of the measured A-weighted sound pressure to the square of
						  the standard reference pressure of 20 micropascals. Unit: decibels (dB). For
						  use with this regulation, SLOW time response, in accordance with ANSI S
						  1.4-1971 (R1976), is
						  required.
Sound Level Meter. An instrument for the measurement of
						  sound level.
1.
						  Repealer of Group 15 (Article 105, Sections
						  5095-5099) and new Group 15
						  (Article 105, Sections
						  5095-5100 and Appendices A-E) filed
						  6-28-82; effective thirtieth day thereafter (Register 82, No. 27). For prior
						  history, see Register 72, No. 6.
2. Amendment filed 10-3-83;
						  effective thirtieth day thereafter (Register 83, No. 41).
3.
						  Amendment of group heading filed 6-3-97; operative 7-3-97 (Register 97, No.
						  23).
Note: Authority cited and Reference: Section
							 142.3, Labor
							 Code.