# AWS::EC2::LocalGatewayRouteTableVPCAssociation Tag ## Syntax To declare this entity in your AWS CloudFormation template, use the following syntax: ### JSON
{ "Key" : String, "Value" : String }### YAML
Key: String Value: String## Properties #### Key _Required_: No _Type_: String _Minimum Length_:
1
_Maximum Length_: 127
_Pattern_: ^(?!aws:.*)
_Update requires_: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)
#### Value
_Required_: No
_Type_: String
_Minimum Length_: 1
_Maximum Length_: 255
_Pattern_: ^(?!aws:.*)
_Update requires_: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)