The 2021 PIF Castelfidardo under the Artistic Direction of Antonio Spaccarotella (picture right) has released the 2021 Rules and Regulations in
English at: 2021PIF-en
and in
Italian at: 2021PIF-it

The dates have also been changed to 28 September to 03 October.
Summary of categories:
Classic category Premio
Classic category D, Soloist without age limits
Classic category C, Soloist under the age of 18
Classic category B, Soloist up to 15 years old
Classic category “student12”
Classic category “Chamber”
Senior virtuoso category, Soloist without age limits
Virtuoso junior category, Soloist up to 18 years old
Virtuoso student category, Soloist up to 15 years old
World senior category
World junior category
World student category
Ensemble world category
Ensemble jazz category
Electronic category (Gervasio Marcosignori award)

Further information, regulations and rules at: 2021PIF