Market Data Definition Language (MDDL)
Google
The Financial Information Services Division of the Software & Information Industry Association
MDDL 2.5-beta : taxExempt
MDDL 2.5-betaSchema DocumentationNo Graphics?
Index: MDDL 2.5-beta Schema Documentation
Element: taxExempt
Description: Instrument is tax exempt in the governing jurisdiction(s).
Used by: jurisdiction 
Attributes:    
Uses: sequence 
Classification: Simple "property"
Diagram: