This is an appeal from Judge Wise's order affirming the decision of the Secretary of Health, Education and Welfare to deny black lung benefits under Title IV of the Federal Coal Mine Health and Safety Act of 1969, Pub.L. No. 91-173, 83 Stat. 792, as amended, 30 U.S.C. §§ 901, et seq. (Supp. V, 1975). Appellant, Cecelia Adelsberger, applied for benefits on May 2, 1972. Her application was denied and, upon administrative reconsideration, was again denied.

After a request from the claimant, Administrative Law Judge L. Charles Leonard conducted a hearing. Considering the case de novo, he determined that the claimant had been a coal mine employee for over ten years, and that her ventilatory function test results were within the severity levels established for claims filed before July 1, 1973.1 Thus, he found her to be disabled within the meaning of the Act. However, he ruled that she was not entitled to black lung benefits because she had been a clerical employee, not a "coal miner." The Appeals Council approved this ruling, and the administrative law judge's decision became the final decision of the Secretary.

The sole issue presented on this appeal is whether the Secretary's decision that the claimant was not a coal miner, as that term is defined in the Act and the regulations issued pursuant thereto, is supported by substantial evidence. We find that it is not, and therefore reverse and remand.

Congress enacted Title IV of the Federal Coal Mine Health and Safety Act of 1969 in order "to provide benefits . . . to coal miners who are totally disabled due to pneumoconiosis . . . ." 30 U.S.C. § 901. Three years later the Act was amended,2 so that the law "will more adequately meet the objectives originally sought in Title IV . . . (and) . . . will bring to the disabled coal miner and his family a greater measure of justice than they have known heretofore." Sen.Rep. No. 92-743, 92d Cong., 2d Sess., 1972 U.S. Code Cong. & Admin. News, p. 2305.3 Section 402 of the 1969 Act, 30 U.S.C. § 902(d), defined "miner" to include "any individual who is or was employed in an underground coal mine." In 1972 this definition was expanded, by deleting the limiting term "underground." The Act also empowers the Secretary of HEW to issue regulations for determining eligibility under the Act, directs him to pay benefits in accordance with the statute and regulations, and establishes certain "rebuttable presumptions" regarding the eligibility determinations. 30 U.S.C. § 921 (Supp. V, 1975).

Pursuant to his statutory authority, the Secretary has issued regulations defining the relevant terms. A miner is "any individual who is working or has worked as an employee in a coal mine, performing functions in extracting the coal or preparing the coal so extracted," 20 C.F.R. § 410.110(j), while a coal mine is

"an area of land and all structures, facilities, machinery, tools, equipment, shafts, slopes, tunnels, excavations, and other property, real or personal, placed upon, under, or above the surface of such land by any person, used in, or to be used in, or resulting from, the work of extracting in such area bituminous coal, lignite, or anthracite from its natural deposits in the earth by any means or method, and the work of preparing the coal so extracted, and includes custom coal preparation facilities."

The administrative determination that appellant is not a "coal miner" was based on these regulations. The statute, however, elaborates upon the definition of "coal mine" by explaining precisely what is meant by the phrase "work of preparing the coal." That phrase includes

"the breaking, crushing, sizing, cleaning, washing, drying, mixing, storing, and loading of bituminous coal, lignite, or anthracite, and such other work of preparing such coal as is usually done by the operator of the coal mine."

30 U.S.C. § 802(i). This definition applies throughout chapter 22 of Title 30, and thus controls the meaning of "coal mine" in the definition of "miner" provided in 30 U.S.C. § 902(d). Therefore, if the claimant's work during the years she was an employee of a coal mining firm included any of these tasks, she is a "coal miner" under the statute, although she might not be considered a miner as that term is commonly used.

The Secretary argues that "at no time did Appellant's duties come within" the definition of miner.5 The record does not support that conclusion, however. Rather, the evidence submitted at the hearing before the administrative law judge establishes that the claimant's duties do fit within the statute. She acted as the intermediary between the office and the other miners, going into an area defined as part of the mine, underneath the tipple, to direct the switching of grates and of railroad cars. This determined what "kind of coal" was prepared and to whom the "lump" or "stoker" coal was shipped. She was also responsible for "all the coal weighing," whether the coal was to be shipped out of the mine by rail or truck. While performing these tasks she "got just as much dust" as did the men working in the tipple.

We conclude that her duties fell within the statute's broad definition of "work of preparing the coal." Thus, she worked in a "coal mine" as that term is defined. There is no dispute that she was "an employee" when performing these tasks. Therefore she must be considered to have been a "coal miner" while she was so engaged.6

The Act and interpretative regulations require the successful claimant to demonstrate that he or she is a coal miner, and is totally disabled. The claimant must also establish that the disability stems from pneumoconiosis, and that the disease arose out of employment in the nation's coal mines. 20 C.F.R. § 410.410. Congress has enacted a series of presumptions regarding the existence of pneumoconiosis, and its causative link with coal mining employment.7 Because the claimant here applied before July 1, 1973, her eligibility for benefits must be tested by the interim evidentiary rules and disability evaluation criteria promulgated by the Secretary.

As noted above, the administrative law judge found that the claimant's results on the ventilatory function test met the medical requirements established for disability due to pneumoconiosis, and so found her disabled. However, because he considered that she was not a "miner," he held that she was not entitled to the benefit of the rebuttable presumption regarding the cause of the disease. 30 U.S.C. § 921(c)(1). Although we hold that her work with respect to the loading of coal brought her within Congress' definition of "miner," the presumption that the disease "arose out of such employment" is available only "if a miner . . . was employed for ten years or more in one or more coal mines."8 Because the record is ambiguous with respect to the time period during which the claimant performed the work of a miner, we must remand the case to the Secretary for further findings of fact.

REVERSED and REMANDED.