Fg mandates compulsory use national identity number

It seems like you're referring to a recent development in a country, specifically the mandatory use of a national identity number.

To provide more context, could you please specify which country you're referring to? Additionally, what do you mean by "fg mandates"? Is it a government agency, a law, or a regulation that's implementing this requirement?

Also, what are the implications of this mandatory use of a national identity number? Is it for taxation purposes, voting, or something else?

I'd be happy to help you understand the situation better and provide more information if needed!