In the first directive, within a macro, LOCAL defines labels that are unique to each instance of the macro.
LOCAL localname [, localname] ...
LOCAL label [ [count] ] [:type] [, label [ [count] ] [type] ] ...
In the second directive, within a procedure definition (PROC), LOCAL creates stack-based variables that exist for the duration of the procedure. The label may be a simple variable or an array containing count elements.