Form 497 - Definitive materials:
SEC Accession No. 0000891092-11-003276
Filing Date
2011-05-17
Accepted
2011-05-16 21:47:13
Documents
1
Effectiveness Date
2011-05-17

Document Format Files

Seq Description Document Type Size
1 SUPPLEMENT e43605_497.htm 497 1417
  Complete submission text file 0000891092-11-003276.txt   3304

Series and Classes/Contracts Information:

Existing
  Status Name Ticker Symbol
CIK 0000225635      
Series S000002334   BlackRock National Municipal Fund
Class/Contract C000006118   Investor A
Class/Contract C000006119   Investor B
Class/Contract C000006120   Investor C1
Class/Contract C000006121   Institutional
Class/Contract C000038033   Investor C
Mailing Address 100 BELLEVUE PARKWAY WILMINGTON DE 19809
Business Address 100 BELLEVUE PARKWAY WILMINGTON DE 19809 800-441-7762
BLACKROCK MUNICIPAL BOND FUND, INC. (Filer) CIK: 0000225635 (see all company filings)

EIN.: 132896246 | State of Incorp.: NJ | Fiscal Year End: 0630
Type: 497 | Act: 33 | File No.: 002-57354 | Film No.: 11849638