# stdnum.dk.cvr

CVR (Momsregistreringsnummer, Danish VAT number).

The CVR (Momsregistreringsnummer, VAT) is an 8 digit number with a straightforward check mechanism.

    >>> validate('DK 13585628')
    '13585628'
    >>> validate('DK 13585627')
    Traceback (most recent call last):
        ...
    InvalidChecksum: ...

`stdnum.dk.cvr.``checksum`(number)

  Calculate the checksum.

`stdnum.dk.cvr.``compact`(number)

  Convert the number to the minimal representation. This strips the number of any valid separators and removes surrounding whitespace.

`stdnum.dk.cvr.``is_valid`(number)

  Check if the number provided is a valid VAT number. This checks the length, formatting and check digit.

`stdnum.dk.cvr.``validate`(number)

  Check if the number provided is a valid VAT number. This checks the length, formatting and check digit.