Market Data Definition Language (MDDL)
Google
The Financial Information Services Division of the Software & Information Industry Association
MDDL 2.5-beta : investingRestrictions
MDDL 2.5-betaSchema DocumentationNo Graphics?
Index: MDDL 2.5-beta Schema Documentation
Element: investingRestrictions
Description: Lists those restrictions limiting which instruments can be components.
Used by: exchangeTradedSubclass  insuranceSubclass  moneyMarketSubclass  mutualSubclass  umbrellaSubclass 
Attributes:      
Uses: sequence 
Classification: Simple "property"
Diagram: