There is no state or federal law or regulation that requires a presidential candidate or a person elected to the presidency to proffer a birth certificate.
As far as Obama was concerned this was always just a campaign strategy.
Under federal law, a U.S. Passport is considered primary evidence of citizenship and identity. A birth certificate can be proffered as “secondary evidence.”
“Types of Acceptable Documentary Evidence of Citizenship”
https://www.law.cornell.edu/cfr/text/42/435.407
And who said there was?
The fact that Obama has refused to proffer a real one, and has proffered a crude, laughable forgery, is evidence that no real one exists, and that Obama is, in fact, an illegal alien.
You still haven't explained why the crude, pathetic forgery contains the typefaces of six different typewriters.