Volunteer functionality available today:

• Foster tracking
• User access with strong permission control
• Volunteer categories for animals
• Adding volunteer-specific attributes to each volunteer's person record
  • Examples of attributes:
    • Bottle baby foster
    • Marketing volunteer
    • Volunteer
• Ability to attach documents to each volunteer's person record
• Volunteer applications through custom applications

What is not available:

• Volunteer contracts
• Tracking of volunteer hours
• Ability to clock in/out

For these advanced functions, you can look into a dedicated volunteer management software such as Better Impact or Volgistics.