20 C.F.R. Part 718, Appendix C

20 C.F.R. Part 718, Appendix C

PART 718-STANDARDS FOR DETERMINING COAL MINERS' TOTAL DISABILITY OR DEATH DUE TO PNEUMOCONIOSIS

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APPENDIX C TO PART 718-BLOOD-GAS TABLES

The following tables set forth the values to be applied in determining whether total disability may be established in accordance with §§718.204(b)(2)(ii). The values contained in the tables are indicative of impairment only. They do not establish a degree of disability except as provided in §§718.204(b)(2)(ii) of this subchapter, nor do they establish standards for determining normal alveolar gas exchange values for any particular individual.  Tests must not be performed during or soon after an acute respiratory or cardiac illness.  A miner who meets the following medical specifications must be found to be totally disabled, in the absence of rebutting evidence, if the values specified in one of the following tables are met:

(1) For arterial blood-gas studies performed at test sites up to 2,999 feet above sea level:

Arterial pCO2 (mm Hg)         Arterial pO2

                              equal to or

                              less than

                              (mm Hg)

25 or below 75
26 74
27 73
28 72
29 71
30 70
31 69
32 68
33 67
34 66
35 65
36 64
37 63
38 62
39 61
40-49 60
Above 50 (1)

1 Any value.

(2) For arterial blood-gas studies performed at test sites 3,000 to 5,999 feet above sea level:

Arterial pCO2 (mm Hg) Arterial pO2
equal to or
less than
(mm Hg)

25 or below 70
26 69
27 68
26 67
29 66
30 65
31 64
32 63
33 62
34 61
35 60
36 59
37 58
38 57
39 56
40-49 55
Above 50 (2)

2 Any value.

(3) For arterial blood-gas studies performed at test sites 6,000 feet or more above sea level:

Arterial pCO2 (mm Hg) Arterial p02
equal to or
less than
(mm Hg)

25 or below 65
26 64
27 63
28 62
29 61
30 60
31 59
32 58
33 57
34 56
35 55
36 54
37 53
38 52
39 51
40-49 50
Above 50 (3)

3 Any value.