To amend the Internal Revenue Code of 1986 to encourage charitable contributions to public charities for use in medical research.

Summary: Medical Research Investment Act of 2001 - Amends the Internal Revenue Code to provide a special limitation for charitable contributions for medical research. Permits the carryover (for 10 succeeding years) of any excess of such contribution.Provides for the special treatment of medical research incentive stock options.

SECTION 1. SHORT TITLE.

    This Act may be cited as the ``Medical Research Investment Act of 
2001''.

SEC. 2. INCREASE IN LIMITATION ON CHARITABLE DEDUCTION FOR 
              CONTRIBUTIONS FOR MEDICAL RESEARCH.

    (a) In General.--Paragraph (1) of section 170(b) of the Internal 
Revenue Code of 1986 (relating to percentage limitations) is amended by 
adding at the end the following new subparagraph:
                    ``(G) Special limitation with respect to certain 
                contributions for medical research.--
                            ``(i) In general.--Any medical research 
                        contribution shall be allowed to the extent 
                        that the aggregate of such contributions does 
                        not exceed the lesser of--
                                    ``(I) 80 percent of the taxpayer's 
                                contribution base for any taxable year, 
                                or
                                    ``(II) the excess of 80 percent of 
                                the taxpayer's contribution base for 
                                the taxable year over the amount of 
                                charitable contributions allowable 
                                under subparagraphs (A) and (B) 
                                (determined without regard to 
                                subparagraph (C)).
                            ``(ii) Carryover.--If the aggregate amount 
                        of contributions described in clause (i) 
                        exceeds the limitation of such clause, such 
                        excess shall be treated (in a manner consistent 
                        with the rules of subsection (d)(1)) as a 
                        medical research contribution in each of the 10 
                        succeeding taxable years in order of time.
                            ``(iii) Treatment of capital gain 
                        property.--In the case of any medical research 
                        contribution of capital gain property (as 
                        defined in subparagraph (C)(iv)), subsection 
                        (e)(1) shall apply to such contribution.
                            ``(iv) Medical research contribution.--For 
                        purposes of this subparagraph, the term 
                        `medical research contribution' means a 
                        charitable contribution--
                                    ``(I) to an organization described 
                                in clauses (ii), (iii), (v), or (vi) of 
                                subparagraph (A), and
                                    ``(II) which is designated for use 
                                in conducting medical research.
                            ``(v) Medical research.--For purposes of 
                        this subparagraph, the term `medical research' 
                        has the meaning given such term under the 
                        regulations promulgated under subparagraph 
                        (A)(ii), as in effect on the date of the 
                        enactment of this subparagraph.''.
    (b) Conforming Amendments.--
            (1) Section 170(b)(1)(A) of the Internal Revenue Code of 
        1986 is amended in the matter preceding clause (i) by inserting 
        ``(other than a medical research contribution)'' after 
        ``contribution''.
            (2) Section 170(b)(1)(B) of such Code is amended by 
        inserting ``or a medical research contribution'' after 
        ``applies''.
            (3) Section 170(b)(1)(C)(i) of such Code is amended by 
        striking ``subparagraph (D)'' and inserting ``subparagraph (D) 
        or (G)''.
            (4) Section 170(b)(1)(D)(i) of such Code is amended--
                    (A) in the matter preceding subclause (I), by 
                inserting ``or a medical research contribution'' after 
                ``applies'', and
                    (B) in the second sentence, by inserting ``(other 
                than medical research contributions)'' before the 
                period.
    (c) Effective Date.--The amendments made by this section shall 
apply--
            (1) to contributions made in taxable years beginning after 
        December 31, 2001, and
            (2) to contributions made on or before December 31, 2001, 
        but only to the extent that a deduction would be allowed under 
        section 170 of the Internal Revenue Code of 1986 for taxable 
        years beginning after December 31, 1999, had section 
        170(b)(1)(G) of such Code (as added by this section) applied to 
        such contributions when made.

SEC. 3. TREATMENT OF CERTAIN INCENTIVE STOCK OPTIONS.

    (a) AMT Adjustments.--Section 56(b)(3) of the Internal Revenue Code 
of 1986 (relating to treatment of incentive stock options) is amended--
            (1) by striking ``Section 421'' and inserting the 
        following:
                            ``(A) In general.--Except as provided in 
                        subparagraph (B), section 421'', and
            (2) by adding at the end the following new subparagraph:
                            ``(B) Exception for certain medical 
                        research stock.--
                                    ``(i) In general.--This paragraph 
                                shall not apply in the case of a 
                                medical research stock transfer of 
                                stock acquired pursuant to the exercise 
                                of an incentive stock option occurring 
                                within the same taxable year as the 
                                exercise.
                                    ``(ii) Medical research stock 
                                transfer.--For purposes of clause (i), 
                                the term `medical research stock 
                                transfer' means a transfer--
                                            ``(I) of stock which is 
                                        traded on an established 
                                        securities market, and
                                            ``(II) which is a medical 
                                        research contribution (as 
                                        defined in section 
                                        170(b)(1)(G)(iv)).''.
    (b) Nonrecognition of Certain Incentive Stock Options.--Section 
422(c) of the Internal Revenue Code of 1986 (relating to special rules) 
is amended by adding at the end the following new paragraph:
            ``(8) Medical research contributions.--For purposes of this 
        section and section 421, the transfer of a share of stock which 
        is a medical research stock transfer (as defined in section 
        56(b)(3)(B)) shall be treated as meeting the requirements of 
        subsection (a)(1).''.
    (c) Effective Date.--The amendments made by this section shall 
apply to transfers of stock made after the date of the enactment of 
this Act.