Bat survey class licences: references and evidence to support your application

This form and guidance is for the following bat licences: 

• survey or research level 1 licence (CL17) 
• survey or research level 2 licence (CL18) 
• survey or research level 3 licence (CL19) 
• survey or research level 4 licence (CL20)

To apply for any of these licences, use the bat survey licence form you require.

You must give written references to support a bat survey class licence if you: 

• have not held a licence for the species, or a similar species, in the last 3 years 
• have a licence but want to add new activities 

Use the guidance to find out who can be your referee and the experience you both need. 

Referees must complete the form on this page to provide you with a reference. 

You must use a different reference form and guidance for: 

• other survey class licences  – including great crested newts (CL08 and CL09), hazel dormice (CL10a and CL10b), barn owls (CL29) and white-clawed crayfish (CL11) 
• other protected species licences