Opinion
Richard F. Bader, claimant, appeals a decision of the Industrial Commission awarding him benefits for partial hearing loss due to loud noise exposure while working for Norfolk Redevelopment and Housing Authority, his employer. On appeal, Bader contends that .the commission erred by utilizing the ANSI standard as a guideline for calculating loss of hearing rather than the American Medical Association (AMA) standard. Bader also asserts that, using the AMA standard, there was sufficient evidence to establish a hearing loss at a frequency greater than 2,000 Hertz (cycles per second). Because we find that the commission’s opinion does not contain an adequate statement of the findings of fact to review whether the ANSI standard followed by the commission is valid according to the substantial weight of current medical opinion, we remand the case.
Richard Bader filed an application for workers’ compensation benefits pursuant to Code §§ 65.1-46.1 and 65.1-56(17) for loss of hearing as a result of exposure to loud noise during his sixteen year employment with employer. The commission found that Bader’s hearing loss was compensable, and this finding is not disputed. Rather, the parties disagree over the correct standard which should be used by the commission to measure the hearing loss. The commission determined that Bader had no hearing loss in his right ear and a five percent loss in his left ear according to the ANSI standard, which is incorporated in the Hearing Determination Chart appended to the Virginia Workers’ Compensation Act, and made its award accordingly. Bader’s physician, Dr. Berrett, determined that Bader sustained an 18.8 percent loss in his right ear and a 24.4 percent loss in his left ear, according to the AMA standard.
Bader asserts that the ANSI standard utilized by the commission is outdated. He argues that the ANSI measurements for hearing loss are significantly lower than AMA measurements, that the use of the ANSI standard deprives claimants of just compensation and is contrary to the letter and spirit of the Act. Therefore, Bader argues, the commission should have used the AMA *700 standard to determine the extent of his hearing loss.
The Hearing Determination Chart used as a guide by the commission in determining levels of compensable hearing loss is included in the “Tables” appended to the Workers’ Compensation Act, preceding the Rules of the Industrial Commission. The Tables also include the Snellen’s Chart table for assigning a percentage of loss of visual acuity to Snellen Chart readings and the Pneumoconiosis Guide for determining the stages of pneumoconioses pursuant to Code § 65.1-56 for given radiographic findings. These tables, while commonly utilized by the commission, are merely guidelines and cannot take precedence over Code § 65.1-56, which they are designed to implement.
See Smith
v.
Fieldcrest Mills, Inc.,
Prior to the decision of the Virginia Supreme Court in
Western Electric Co.
v.
Gilliam, 229
Va. 245,
The Hearing Determination Chart is not a substantive rule of the commission subject to the Virginia Administrative Process Act (VAPA), Code §§ 9-6.14:1 through 9-6.14:25 or the Virginia Register Act, Code §§ 9-6.15 through 9-6.22.
Cf. Haines
v.
Workmen’s Compensation Comm’r,
The Hearing Determination Chart was not adopted pursuant to the commission’s rule making authority under Code § 65.1-18 and therefore is not binding in law as are rules.
See Sargent Elec. Co. v. Woodall,
In addition to its statutorily granted powers, the commission also has incidental powers which are reasonably implied as a necessary incident to its expressly granted powers for accomplishing the purposes of the Workers’ Compensation Act.
See
1A Michie’s Jurisprudence
Administrative Law
§ 3, at 193 & n. 12 (1980). The Act provides that incapacity to work due to hearing loss which meets the criteria of an ordinary disease of life shall be compensable as provided in Code § 65.1-56(17).
See
Breeding,
The most comprehensive statement of the role of interpretative [rules] ... is found in Skidmore v. Swift & Co.,323 U.S. 134 , 140 (1944), where the Court said: “[W]hile not controlling upon the courts by reason of their authority, [interpretative rules] do constitute a body of experience and informed judgment to which courts and litigants may properly resort for guidance. The weight of such a judgment in a particular case will depend upon the thoroughness evident in its consideration, the validity of its reasoning, its consistency with earlier and later pronouncements, and all those factors *703 which give it power to persuade, if lacking power to control.”
Id. at 141-42.
Dr. Berrett testified that recent medical studies advocate the use of a 3,000 Hertz measurement for determining hearing loss because that frequency is critical to predicting the degree of difficulty a person will have in speech discrimination with a background of noise. The ANSI standard does not measure hearing loss above 2,000 Hertz. Dr. Berrett stated that the ANSI standard is the standard to which an audiometer must be calibrated in order to use the Hearing Determination Chart, but that the AMA standards are much newer and more widely used in measuring hearing loss. There is no expert medical opinion in the record regarding hearing loss standards other than the testimony of Bader’s physician, Dr. Berrett. The commission’s opinion notes that “the Commission on Review is not willing to change its approved guideline for determining an employee’s hearing loss as it recognizes there are arguments in both directions in this respect.” Although we recognize that the commission adopted the Hearing Determination Chart in the light of its informed experience, without an adequate statement of the findings of fact, rulings of law and other matters pertinent to the issue of the current weight of medical opinion favoring use of the ANSI standard among practitioners we are unable to reach an informed decision as to the merits of Bader’s challenge to its continuing validity. We therefore remand the case with directions that the commission make the appropriate findings concerning the commission’s decision to use the ANSI guidelines rather than the AMA guidelines in this case.
Reversed and remanded.
Baker, J., and Barrow, J., concurred.
Notes
Code § 65.1-56(17) provides: “For the permanent total loss of the hearing of an ear, sixty-six and two-thirds percent of the average weekly wages during fifty weeks; and for the permanent partial loss of the hearing of an ear, the percentage of fifty weeks equivalent to the percentage of the hearing so permanently lost.”
The Chart provides that “[i]f other standards such as ISO or ASA are used to determine decibels of hearing loss they should be adjusted to the ANSI standard.”
Compare the Hearing Loss Determination Chart with the rule of the Industrial Commission of Arizona discussed in
Adams
v.
Industrial Commission,
