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 › Appendix F - Determination and Application of Age Corrections to Audiograms

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
As permitted by Section
						  5097(d)(9),
						  increases in an employee's hearing thresholds, as evidenced by an audiogram
						  taken subsequent to a baseline audiogram, may be adjusted (lowered) for
						  presbycusis (hearing loss due to aging). The applicable correction values at
						  various ages and sound frequencies are included in Table F. If the employer
						  chooses to adjust an employee's audiogram pursuant to Section
						  5097(d)(9), the
						  employer shall follow the procedure described below.
(a) Obtain from Table F the age correction values at
						  each audiometric test frequency of interest (the hearing losses at 2000, 3000,
						  and 4000Hz are relevant to the determination of whether a standard threshold
						  shift, as defined by Section
						  5097(d)(8), may
						  exist) for the employee by:
(1) Finding the age at which the most recent audiogram
						  was taken and recording the corresponding age correction values; and
(2) Finding the age at which the baseline audiogram was
						  taken and recording the corresponding age correction values.
(b) Subtract the values found in (a)(2) from those
						  found in (a)(1). (The remainders from these subtractions represent the values
						  (in decibels) which may be attributed to aging and are the values by which the
						  most recent audiogram may be adjusted at the respective audiometric test
						  frequencies.)
(c) Subtract the values found in (b) from the hearing
						  threshold values of the most recent audiogram.
When the adjustment of an audiogram for hearing loss
						  due to aging is performed for the purpose of determining whether a standard
						  threshold shift has occurred, the above-described calculations may be
						  restricted to the 2000, 3000, and 4000 Hz frequencies. If the average of the
						  hearing threshold values at 2000, 3000, and 4000 Hz found in step (c), above,
						  is equal to or greater than 10, then the employee has exhibited a standard
						  threshold shift, and the employer must comply with various provisions of
						  Section 5097(d) as well as
						  certain other requirements such as Sections
						  5098(a)(2)(B)2 and
						  (b)(3).
Table F Age Correction
									 Values in Decibels for Males (M) and Females (F)
Audiometric Test Frequencies
								  (Hz)
Age
1000
2000
3000
4000
6000
M
F
M
F
M
F
M
F
M
F
20 or
								  Younger..........................
5
7
3
4
4
3
5
3
8
6
21..........................
5
7
3
4
4
4
5
3
8
6
22..........................
5
7
3
4
4
4
5
4
8
6
23..........................
5
7
3
5
4
4
6
4
9
7
24..........................
5
7
3
5
5
4
6
4
9
7
25..........................
5
8
3
5
5
4
7
4
10
7
26..........................
5
8
4
5
5
5
7
4
10
8
27..........................
5
8
4
5
6
5
7
5
11
8
28..........................
6
8
4
5
6
5
8
5
11
8
29..........................
6
8
4
5
6
5
8
5
12
9
30..........................
6
8
4
6
6
5
9
5
12
9
31..........................
6
8
4
6
7
6
9
5
13
9
32..........................
6
9
5
6
7
6
10
6
14
10
33..........................
6
9
5
6
7
6
10
6
14
10
34..........................
6
9
5
6
8
6
11
6
15
10
35..........................
7
9
5
6
8
7
11
7
15
11
36..........................
7
9
5
7
9
7
12
7
16
11
37..........................
7
9
6
7
9
7
12
7
17
12
38..........................
7
10
6
7
9
7
13
7
17
12
39..........................
7
10
6
7
10
8
14
8
18
12
40..........................
7
10
6
7
10
8
14
8
19
13
41..........................
7
10
6
8
10
8
14
8
20
13
42..........................
8
10
7
8
11
9
16
9
20
13
43..........................
8
11
7
8
12
9
16
9
21
14
44..........................
8
11
7
8
12
9
17
9
22
14
45..........................
8
11
7
8
13
10
18
10
23
15
46
								  ..........................
8
11
8
9
13
10
19
10
24
15
47..........................
8
11
8
9
14
10
19
11
24
16
48..........................
9
12
8
9
14
11
20
11
25
16
49..........................
9
12
9
9
15
11
21
11
26
16
50..........................
9
12
9
10
16
11
22
12
27
17
51..........................
9
12
9
10
16
12
23
12
28
17
52..........................
9
12
10
10
17
12
24
13
29
18
53..........................
9
13
10
10
18
13
25
13
30
18
54..........................
10
13
10
11
18
13
26
14
31
19
55..........................
10
13
11
11
19
14
27
14
32
19
56..........................
10
13
11
11
20
14
28
15
34
20
57..........................
10
13
11
11
21
15
29
15
35
20
58..........................
10
14
12
12
22
15
31
16
36
21
59..........................
11
14
12
12
22
16
32
16
37
21
60 or Older..........................
11
14
13
12
23
16
33
17
38
22
1. New
						  Appendix F filed 10-3-83; effective thirtieth day thereafter (Register 83, No.
						  41).
Note: Authority cited and Reference: Section
							 142.3, Labor
							 Code.