Definitions:

• Core Vaccination:  Vaccinations that all animals of a given species needs.  These vaccines protect against diseases that are easily transmitted, and diseases presenting a human health risk.
• Non-core Vaccination:  Vaccination that certain animals need depending on their lifestyle and exposure risk.  Diseases can be severe but exposure is limited to certain circumstances.

Rabies (core):  Required by law.  Available in 1 year and 3 year vaccinations.  First vaccination is always 1 year.

FVRCP (Rhinotracheitis/Calicivirus/Panleukopenia) "Feline Distemper" (core):  Easily transmitted respiratory and immunosuppresssive diseases. Available in 1 year and 3 year vaccinations.
 
Feline Leukemia (non-core):  Recommended for outdoor cats only.  Usually transmitted through bites.  Annual vaccine.