New operators, or those that have not met minimum standards, or have evidence of poor welfare standards in the past, will be allocated a higher risk score.

Operators in business for more than a year, with a record of meeting or exceeding statutory standards, and/or a UKAS-accredited certification, will be allocated a lower risk score.

Star ratings are then calculated, although unlike other rating systems (eg Food Hygiene) they are based on a combination of risk and compliance.

For example, new operators are not capable of obtaining 1 or 5 stars on their first rating; some operators might exceed the statutory standards but if they have a higher risk band will only be allocated a maximum of 4 stars. So even those receiving 2 or 3 stars, whilst not achieving the higher standards, are nevertheless fully compliant with legislation.

At least one visit will be undertaken within the licence period granted.

Operators that keep or train animals for exhibition do not receive a star rating. Their licence is issued for three years.