Administrative procedure. Demand for hearing by aggrieved taxpayer. Department of revenue to hold hearing, §50-13-12. Housing and finance authority. Exemption from taxation, §50-26-9. Lotteries. Prize proceeds. State income tax, §50-27-24. Meetings. Open and public meetings. Provisions not to repeal confidentiality of certain tax matters, §50-14-2. Payment of taxes. Credit cards, §50-1-6. Public records. Disclosure exemptions, §50-18-72. Taxing authority request. Disclosure not exempted, §50-18-77. INDEX TAXATION —Cont’d Purchasing. Department of administrative services. Tax stamps, tags and paraphernalia evidencing payment of taxes. Purchase by department, §50-5-76. Regional transportation authority. Bond issues. Tax-exempt status, §§50-32-31, 50-32-32, 50-32-37. Tax tribunal, §§50-13A-1 to 50-13A-20. TAX EXEMPTIONS. Atlanta-region transit link “ATL” authority. Bond issues and other obligations. Guaranteed revenue bonds. Use of guaranteed revenue bonds,