?

ANSI/SAAMI Maximum Average pressure for 9mm stands at 35,000 psi. +P usually runs around another 1500 psi and +P+ can get into proof loading range, but consider this: all US ammo is low psi compared to European. We have a bad habit of loading for liability reasons due to the weakest pistols in cirulation, means back to WW2 when German Lugers were "imported" If the CZ is all steal it should be fine.
edit for spelling as usual

For the last time.

No it's not.

SAAMI has no +p+ standard for 9mm.