There are no links to the official documents for the years 1989 through 1995. The information below can only be used as help for further research, as there is not enough information here to rely on for official guidance. For that you need to obtain a copy of the complete document.

INCOME TAX

Rev. Rul. 91-1
Federal rates; adjusted federal rates; adjusted federal long-term rate, and the long-term exempt rate. For purposes of sections 1274, 1288, 382, and other sections of the Code, tables set forth the rates for January 1991.

EXCISE TAXES

Announcement 91-3
Section 4980 of the Code as amended by the Omnibus Budget Reconciliation Act of 1990 (Public Law 101-508), increased the rate of excise tax on the reversion of pension plan assets to an employer.

ADMINISTRATIVE

Rev. Proc. 91-1
Rulings; determination letters; closing agreements; Associate Chief Counsel (Technical). Revised procedures are provided for issuing rulings, determination letters, and information letters, and for entering into closing agreements on specific issues under the jurisdiction of the Associate Chief Counsel (Technical). Rev. Proc. 90-1 superseded. Bulletin No. 1991-1 January 7, 1991

Rev. Proc. 91-2
Technical advice to the District Directors and Chiefs, Appeals Offices; Associate Chief Counsel (Technical). Revised procedures are provided for furnishing technical advice to District Directors and Chiefs, Appeals Offices, in areas under the jurisdiction of the Associate Chief Counsel (Technical). Taxpayers rights when such advice has been requested are also set forth. Rev. Proc. 90-2 superseded.

Rev. Proc. 91-3
Update of Rev. Proc. 90-3; areas in which advance rulings will not be issued. This revenue procedure updates Rev. Proc. 90-3, as amplified and modified by subsequent revenue procedures, to provide a revised list of these areas of the Internal Revenue Code under the jurisdiction of the Associate Chief Counsel (Technical) relating to issues in which the Service will not issue advance rulings or determination letters. Rev. Procs. 90-3, 90-3A, 90-33, 90-35, 90-40, and 90-54 superseded. Rev. Proc. 90-56 superseded in part.

Announcement 91-1
Two changes should be made to the 1990 Publication 17, Your Federal Income Tax.

Announcement 91-2
New Publication 944, Tax Information for Those Affected by Operation Desert Shield, is now available.