You have requested our opinion as to whether the State of Mississippi recognizes as
                  valid the common-law-type marriage which was provided for in the 1981 Choctaw Domestic
                  Relations Code. You have also queried whether the divorces and annulments granted
                  by the Choctaw Tribal Court are recognized as valid by the State of Mississippi.
               
               The power to regulate marriages within a State belongs to that State and not to Congress
                  or another State; but Congress has power and control over marriage in the territories
                  of the United States, in the District of Columbia, and between members of certain
                  Indian tribes. American Indians, because of their quasi-sovereign status, occupy a
                  distinct position with respect to American jurisprudence; they are entitled to marry
                  according to the customs of their tribe if they are living in a tribal relation and
                  if the tribe's right to internal self-government has not been superceded by Federal
                  law or by State law under Federal authorization, and their marriages will be recognized
                  as valid in State and Federal courts. U.S.  v. Quiver, 241 u.s. 602 (1916); Carney v. Chapman, 247 U.S. 102 (1918); Hallowell v. Commons, 210 F.793, aff'd. 239 U.S. 506 (1916). This is true even though the marriage does
                  not conform to the statutory requirements of the State in which the tribe is located.
                  Hallowell v. Commons, supra.
               
               Indian marriages are considered neither ceremonial marriages nor common-law marriages,
                  but are valid marriages according to the custom and law of the tribe to which the
                  parties belong. 52 Am.Jur.2d, Marriage §98; LaFramboise v. Day, 136 Minn. 239, 161 N.W. 529. Similarly, divorces and annulments in accordance with
                  Indian law will be recognized as valid elsewhere. LaFramboise  v. Day, supra; Palmer v. Cully, 52 Okla. 454, 153 P.154. It is not considered essential to the application of the
                  general rule for recognition of the divorce that both spouses be of Indian blood.
                  Cyr v. Walker, 29 Okla. 281, 116 P.931.
               
               It is our opinion that the Choctaw Indian tribe has the inherent power to regulate
                  the domestic affairs of their members. As noted above, Federal statutes may be adopted
                  by Congress taking away jurisdiction over domestic affairs from tribal authorities
                  and giving it to State authorities. This office contacted Mr. Mike C~ of the Solicitor's
                  Office for the Bureau of Indian Affairs on November 9, 1983; he informed us that no
                  Federal statute has been adopted taking away the jurisdiction over domestic affairs
                  from the Choctaw tribal authorities.
               
               This office also spoke with Mr. Edmund S~ of the Legal Services office for the Choctaw
                  Indian Administration); Mr. S~ wrote the majority of the 1981 Choctaw Domestic Relations
                  Code. By way of background information, Mr. S~ stated that on Indian reservations
                  in Mississippi, as in most States, Indian tribal governments exercise civil jurisdiction
                  over tribal members to the exclusion of the State. In the absence of tribal laws,
                  the Bureau of Indian Affairs' regulations as set forth in Title XXV of the Code of
                  Federal Regulations (C.F.R.) apply. 25 C.F.R. §11.l(b) and (d). The regulations promulgated
                  by the Bureau are general and the Choctaws operated under these regulations until
                  their own code was enacted effective September 1, 1981. The C.F.R. allowed and recognized
                  tribal custom marriages and divorces. With the adoption of a code, the Choctaw tribe
                  was attempting to come into conformity with the State laws while retaining certain
                  centuries-old practices.
               
               The Choctaw Tribal Code parallels Mississippi law on marriage, annulments and divorce
                  with the exception of a factor, tribal custom, which varies based on 25 C.F.R. Title.
                  25 C.F.R. §11.28 provides that Indians may become married or divorced by the custom
                  of the tribe pending any determination on these matters by the tribal council. The
                  Choctaw tribal code provides for a valid non-ceremonial custom marriage where two
                  parties domiciled in Choctaw Indian country, who are at least 21 years of age, engage,
                  for a period of not less than two years, in a mutually manifested course of conduct
                  and representations expressive of their intention to be regarded within the Indian
                  community as husband and wife. §9-1-7(c) of the Choctaw Domestic Relations Code.
               
               The Choctaw code does not, however, provide for a tribal custom divorce. Thus, with
                  the effective date of the code, September 1, 1981, tribal custom divorces are no longer
                  valid. Prior to the effective date of the code, the Choctaws, pursuant to 25 C.F.R.
                  §11.28, recognized an Indian custom divorce where the two parties mutually manifested
                  an intent and course of conduct to be no longer married. Subsequent to the effective
                  date of the Choctaw code (September 1, 1981), however, divorce actions must follow
                  the Mississippi Civil Procedure.
               
               In summary, it is our opinion that the State of Mississippi would recognize as valid
                  a common-law-type marriage which is valid according to the custom and law of the Choctaw
                  Indian tribe. Authority for this position that Indians are entitled to marry according
                  to tribal custom and that these marriages will be recognized as valid in State and
                  Federal courts even though the marriage does not conform to the statutory requirements
                  of the State in which the tribe is located dates back at least as far as several 1916
                  Supreme Court cases. For purposes of updating the Program Operations Manual System
                  (POMS), we have discussed the requirements for a valid marriage according to Choctaw
                  tribal custom which have been codified. As noted above, the Choctaw Domestic Relations
                  Code effective September 1, 1981, provides for a valid common-law-type marriage according
                  to tribal custom consisting of:
               
               "Engaging in a mutually manifested course of conduct over a period of not less than
                  two (2) years by two parties domiciled in the Choctaw Indian country who are at least
                  21 years of age; their conduct and representations expressive of their intention to
                  be regarded within the Indian community as husband and wife."
               
               With the effective date of the Choctaw Domestic Relations Code (September 1, 1981),
                  annulment and divorce proceedings must be in accordance with the law of the State
                  of Mississippi.