[Federal Register Volume 59, Number 15 (Monday, January 24, 1994)] [Unknown Section] [Page 0] From the Federal Register Online via the Government Publishing Office [www.gpo.gov] [FR Doc No: 94-1484] [[Page Unknown]] [Federal Register: January 24, 1994] ======================================================================= ----------------------------------------------------------------------- DEPARTMENT OF VETERANS AFFAIRS 38 CFR Part 3 RIN 2900-AG29 Claims Based on Chronic Effects of Exposure to Vesicant Agents AGENCY: Department of Veterans Affairs. ACTION: Proposed rule. ----------------------------------------------------------------------- SUMMARY: The Department of Veterans Affairs (VA) is proposing to amend its adjudication regulations concerning compensation for disabilities or deaths resulting from the chronic effects of in-service exposure to mustard gas and other vesicant agents. This proposed regulation is based on a National Academy of Sciences (NAS) study of the long-term health effects of exposure to vesicant agents, commissioned by VA, which found a relationship between such exposure and the subsequent development of certain conditions. The intended effect of this proposed amendment is to expand and extend compensation eligibility. DATES: Comments must be received on or before March 25, 1994. Comments will be available for public inspection until April 4, 1994. This amendment is proposed to be effective the date of publication of the final rule. ADDRESSES: Interested persons are invited to submit written comments, suggestions, or objections regarding this amendment to Secretary of Veterans Affairs (271A), Department of Veterans Affairs, 810 Vermont Avenue, NW., Washington, DC 20420. All written comments received will be available for public inspection only in the Veterans Services Unit, room 170, at the above address between the hours of 8 a.m. and 4:30 p.m., Monday through Friday (except holidays), until April 4, 1994. FOR FURTHER INFORMATION CONTACT: John Bisset, Jr., Consultant, Regulations Staff, Compensation and Pension Service, Veterans Benefits Administration, (202) 233-3005. SUPPLEMENTARY INFORMATION: On July 31, 1992, VA published a final regulation (38 CFR 3.316) authorizing service connection in claims from veterans who underwent full-body exposure to mustard gas during field or chamber experiments to test protective clothing or equipment during World War II, and who subsequently develop chronic forms of laryngitis, bronchitis, emphysema, asthma, conjunctivitis, keratitis, or corneal opacities (See 57 FR 1699-1700 and 57 FR 33875-77). The regulation was based on a review of the available English language medical literature dealing with the effects of exposure to mustard gas by Veterans Health Administration (VHA) personnel. VA also contracted with NAS to conduct a review of the world medical and scientific literature, including that published in languages other than English, to determine the long-term health effects of exposure to mustard agents and Lewisite. After reviewing almost 2,000 medical and scientific papers, consulting with outside experts, and conducting public hearings, NAS issued that report, entitled ``Veterans at Risk: The Health Effects of Mustard Gas and Lewisite'', on January 6, 1993. We are proposing to amend 38 CFR 3.316 based upon our review of that report. NAS findings confirmed VA's prior determination that there is a relationship between exposure to mustard gas and the subsequent development of the seven conditions previously mentioned. NAS also found that the evidence indicated a causal relationship between exposure to mustard gas and the subsequent development of ``recurrent corneal ulcerative disease'' and ``delayed recurrent keratitis of the eye.'' In our judgment the term ``corneal opacities,'' used in the current regulation, is broad enough to include corneal ulcerative disease and we do not propose to change the language in the current regulation. For reasons discussed below, this regulation will cover specified conditions whether onset occurred immediately after exposure or was delayed, and we find no reason to modify the term ``keratitis'' which appears in the current regulation. NAS also found that the evidence indicated a causal relationship between exposure to mustard gas and the subsequent development of nasopharyngeal, laryngeal, lung, and skin cancers, pigmentation abnormalities of the skin, and chronic skin ulceration and scar formation. We propose to add nasopharyngeal, laryngeal and lung cancer (except mesothelioma) to the list of conditions for which presumptive service connection may be granted based on exposure to mustard gas. We are proposing to exclude mesothelioma from the regulatory amendment, however, since the only known cause of that condition is asbestos exposure. Although NAS used the term ``skin cancer'' in the summary of its findings, in our judgment the body of the report, which refers to squamous cell and basal cell carcinomas of the skin but not malignant melanomas, does not support so broad a presumption of service connection. Although basal cell skin cancers were noted in some animal studies, these studies constitute evidence of carcinogenicity rather than evidence of skin cancer because there is no good animal model for human skin response to mustard agents. Likewise, the one occupational study that described basal cell carcinomas, Bowen's disease, and other hyperkeratotic skin lesions was too seriously flawed to establish a causal relationship with exposure to mustard agents. As the report notes, the workers in that study were exposed to all types of gases, not just mustard gas and Lewisite. Also, those individuals who participated in chamber and field testing suffered acute rather than chronic exposure like the chemical plant workers in the occupational study, which occurred for many hours each week over many years. The report states that ``cutaneous cancers following acute sulfur mustard exposure usually localize in scars,'' and scar cancers are squamous cell carcinomas, not basal cell carcinomas. Finally, since the 1973 Jackson and Adams study, which is cited in the NAS report in reference to the occurrence of basal cell carcinoma and which included two cases of basal cell carcinomas in World War I veterans, is not an epidemiologic study, it is difficult to draw conclusions as to whether the findings represent an unusual rate for basal cell carcinoma. For these reasons, we propose to include only squamous cell carcinomas of the skin. In our judgment, there is no reason to establish presumptive service connection for ``pigmentation abnormalities of the skin'' because these abnormalities would be obvious from the time of the exposure to vesicant agents rather than occurring many years after exposure, as in the case of cancer. Also, because the usual places for mustard gas burns are areas of the body which are not visible, i.e., moist areas of the body such as the groin and axilla, rather than exposed areas as in the case of sunburn, most pigmentation abnormalities resulting from these burns would not be considered disabling, unless they interfered with the veteran's ability to function. In this regard, there is no mention in the NAS report of vitiligo-type lesions, which are usually considered to be disabling because they are disfiguring. Since compensation is only payable for a disability resulting from an injury suffered or disease contracted in line of duty or from aggravation of a preexisting injury or disease contracted in line of duty (See 38 U.S.C. 1110, 1121, 1131, and 1310), and since exposure to vesicant agents does not cause a type of pigmentation abnormality which is disabling, we do not propose to include pigmentation abnormalities of the skin in the regulation. However, we propose to include scar formation in the regulation. In addition to the respiratory conditions VA had previously recognized, NAS found that the evidence indicated a causal relationship between exposure to mustard gas and chronic obstructive pulmonary disease. NAS further found that all these respiratory conditions could also result from exposure to Lewisite, another vesicant agent. We are proposing to provide service connection for a chronic form of laryngitis, bronchitis, emphysema, asthma or chronic obstructive pulmonary disease, as a result of exposure to mustard gas or Lewisite. Additionally, NAS determined that the evidence indicated a causal relationship exists between exposure to nitrogen mustard and the subsequent development of acute nonlymphocytic leukemia. Based on that information, we propose to provide service connection for acute nonlymphocytic leukemia as a result of exposure to nitrogen mustard only. NAS also found evidence that indicates a causal relationship between mustard gas exposure and the subsequent development of bone marrow depression, immunosuppression, psychological disorders, and sexual dysfunction, but we do not propose to allow presumptive service connection for these conditions. Bone marrow depression and immunosuppression are acute effects that may have resulted in greater susceptibility to infections with a possibility of damage to vital organ systems. Since these acute effects would have resolved within a relatively short period, however, any related infection would have occurred in service or shortly thereafter and an adequate regulatory framework to establish direct service connection already exists. Psychological disorders may result from traumatic or stressful features of the exposure experience, but are not a toxic effect of the agents themselves. An adequate regulatory framework currently exists to establish service connection for post-traumatic stress disorder as a result of exposure to vesicant agents. Establishing a presumption of service connection for sexual dysfunction would serve no purpose, since sexual dysfunction is not compensated under VA's Schedule for Rating Disabilities (38 CFR Part 4) but rather under 38 U.S.C. 1114(k), which provides special monthly compensation for the loss or loss of use of a creative organ. Special monthly compensation is a benefit established by Congress, not by VA regulation, and is therefore beyond the scope of this rulemaking. There were two other categories of findings in the NAS report. NAS found that the evidence was ``suggestive'' of a causal relationship between exposure to mustard gas and reproductive dysfunction (genotoxicity, mutagenicity, etc.) and exposure to sulfur mustard and leukemia. NAS found insufficient evidence of a causal relationship between exposure to mustard gas and gastrointestinal diseases, hematologic diseases, neurological diseases, cardiovascular diseases, and for reproductive dysfunction as a result of exposure to Lewisite. As NAS itself indicates, further study in these areas is necessary and in our judgment, the scientific and medical evidence on the whole does not support the establishment of presumptions for these conditions. Since the revised regulation will address the effects of Lewisite as well as mustard agents, we propose to revise the heading of 38 CFR 3.316 to indicate that the regulation addresses claims based on chronic effects of exposure to vesicant agents rather than mustard gas only. The current regulation applies only to those veterans exposed while participating in secret tests of protective equipment during World War II; we propose to expand it to cover any verified full-body exposure during military service, which will allow veterans exposed to mustard gas under battlefield conditions in World War I, those present at the German air raid on the harbor of Bari, Italy, in World War II, and those engaged in manufacturing and handling vesicant agents during their military service to be eligible for consideration under this regulation. We are not proposing to include veterans who were exposed to vesicant agents via patch or drop testing. The literature upon which the NAS report is based covered animal studies and two types of human studies: (1) Industrial studies of workers in chemical factories which manufactured mustard gas; and (2) studies of soldiers exposed to mustard gas in warfare, primarily during World War I. These studies involved full-body exposure, not patch testing. The NAS report does not discuss any studies relevant to patch or drop testing. However, the NAS report concluded that the exposure of many participants in chamber and field tests was equivalent to that of soldiers in World War I, and therefore the NAS report concluded that the World War I and chronic exposure studies were relevant to the experience in the chamber and field tests. Since the NAS report only considered studies involving full-body exposure, we believe that the NAS findings regarding specific diseases are linked only to full-body exposure, and not to patch or drop testing. We also propose to amend 38 CFR 3.316 by adding a requirement that service connection will not be established if there is affirmative evidence that establishes a nonservice-related supervening condition or event as the cause of the claimed condition. The current regulation is based upon a literature search of the immediate and short-term effects of mustard gas exposure by the Veterans Health Administration, which revealed that nonfatal exposures to mustard gas result in an immediate acute injury. It was also reported that any chronic disability related to mustard gas exposure should appear shortly after the exposure and continue to the present. The NAS report, however, found that delayed effects of mustard gas exposure may appear even though no acute effects were noted. Because of this delay in manifestation of effects of mustard gas exposure reported by the NAS, during which time the veteran may have been exposed to other nonservice-related causative conditions or events, we have determined that it is reasonable to consider evidence of intervening cause which may exist, just as we do for other presumptive conditions (See 38 CFR 3.307(b)). The Secretary hereby certifies that this regulatory amendment will not have a significant economic impact on a substantial number of small entities as they are defined in the Regulatory Flexibility Act (RFA), 5 U.S.C. 601-612. The reason for this certification is that this amendment would not directly affect any small entities. Only VA beneficiaries could be directly affected. Therefore, pursuant to 5 U.S.C. 605(b), this amendment is exempt from the initial and final regulatory flexibility analysis requirements of sections 603 and 604. (The Catalog of Federal Domestic Assistance program numbers are 64.109 and 64.110.) List of Subjects in 38 CFR Part 3 Administrative practice and procedure, Claims, Handicapped, Health care, Pensions, Veterans. Approved October 22, 1993. Jesse Brown, Secretary of Veterans Affairs. For the reasons set out in the preamble, 38 CFR part 3 is proposed to be amended as set forth below: PART 3--ADJUDICATION Subpart A--Pension, Compensation, and Dependency and Indemnity Compensation 1. The authority citation for part 3, subpart A, continues to read as follows: Authority: 38 U.S.C. 501(a), unless otherwise noted. 2. 38 CFR 3.316 is revised to read as follows: Sec. 3.316 Claims based on chronic effects of exposure to vesicant agents. (a) Except as provided in paragraph (b) of this section, exposure to the specified vesicant agents during active military service under the circumstances described below in paragraphs (a)(1) through (3) of this section together with the subsequent development of any of the indicated conditions is sufficient to establish service connection for that condition: (1) Any verified full-body exposure to nitrogen or sulfur mustard during active military service together with the subsequent development of chronic conjunctivitis, keratitis, corneal opacities, scar formation, or the following cancers: nasopharyngeal; laryngeal; lung (except mesothelioma); or, squamous cell carcinoma of the skin. (2) Any verified full-body exposure to nitrogen or sulfur mustard or Lewisite during active military service together with the subsequent development of a chronic form of laryngitis, bronchitis, emphysema, asthma or chronic obstructive pulmonary disease. (3) Any verified full-body exposure to nitrogen mustard during active military service together with the subsequent development of acute nonlymphocytic leukemia. (b) Service connection will not be established under this section if the claimed condition is due to the veteran's own willful misconduct (See Sec. 3.301(c)) or there is affirmative evidence that establishes a nonservice-related supervening condition or event as the cause of the claimed condition (See Sec. 303). [FR Doc. 94-1484 Filed 1-21-94; 10:00 a.m.] BILLING CODE 8320-01-M