Required Supplementary Information

Budgetary Data by Major Budgetary Accounts
Intragovernmental Balances
Deferred Maintenence

National Science Foundation

Supplementary Information

September 30, 2000 and 1999 (in thousands)

Budgetary Resources by Major Budgetary Accounts (Unaudited)
For the Year Ended September 30, 2000				2000							1999
(with comparative totals for 1999)				(Amounts in Thousands)
				Research and Related	Education	Major Research Equipment	OIG and Salary Expense		Total		Total
Budgetary Resources
	Budget Authority			$3,013,526	739,478	93,500	154,734		4,001,238		$3,739,026
	Unobligated Balances - Beginning of Period			62,398	56,013	67,963	1,233		187,607		151,471
	Spending Authority from Offsetting Collections			69,657	11,762	2	4,076		85,498		97,307
	Adjustments			22,041	11,883	14,511	1,450		49,886		33,378
Total Budgetary Resources				$3,167,622	819,136	175,977	161,493		4,324,228		$4,021,182
Status of Budgetary Resources:
	Obligations Incurred			$3,087,920	724,908	105,002	159,322		4,077,152		$3,833,575
	Unobligated Balances - End of Period - Available			28,321	59,689	56,464	119		144,593		101,502
	Unobligated Balances - End of Period - Not Available			51,381	34,539	14,511	2,052		102,483		86,105
Total, Status of Budgetary Resources				$3,167,622	819,136	175,977	161,493		4,324,228		$4,021,182
Outlays
	Obligations Incurred			$3,087,920	724,908	105,002	159,322		4,077,152		$3,833,575
	Less: Spending Authority from offsetting			107,535	33,073	14,513	6,951		162,072		148,480
	Collections and Adjustments
	Obligated Balance, Net - Beginning of Period			3,222,298	940,561	28,931	25,723		4,217,513		3,799,257
	Less: Obligated Balance, Net - End of Period			3,483,268	1,048,392	86,476	27,066		4,645,202		4,217,513
Total, Outlays				$2,719,415	584,004	32,944	151,029		3,487,391		$3,266,839