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 | ||
| Class/Contract C000100249 | Service Shares | ||
| Class/Contract C000100250 | BlackRock Shares | ||
| Class/Contract C000100251 | Investor B1 Shares | ||
IRS No.: 132896246 | State of Incorp.: NJ | Fiscal Year End: 0630
Type: 497 | Act: 33 | File No.: 333-173241 | Film No.: 11849726
