The CTS does not have the notion of global statics: all statics are associated with a particular class. Nonetheless, the metadata is designed to support languages that rely on static data that is stored directly in a PE/COFF file and accessed by its relative virtual address. In addition, while access to managed data and managed functions is mediated entirely through the metadata itself, the metadata provides a mechanism for accessing unmanaged data and unmanaged code.
Global static fields and methods are not CLS-compliant.
[Note:
CLS (consumer): Need not support global static fields or methods.
CLS (extender): Need not author global static fields or methods.
CLS (framework): Shall not define global static fields or methods. end note]