One of the documents you receive when you purchase the online photographer's policy is a blank certificate of insurance. It's a form-fillable PDF that you can use to provide proof of insurance and add interested parties as additional insureds and loss payees to your policy. If you need to add someone to your policy as an additional insured, you just add the name and address of the interested part, as per their insurance requirements, give them a copy, and forward a copy to our office. The instructions we provide will tell you what email address to use when sending us your certificates. Please refer to that document for more information.
A certificate of insurance can do a few things: it can prove to someone that you have insurance. It can add a party to your insurance contract as an “additional insured”, so that your policy will also afford them coverage with respect to your activities. Or it can add them as a “loss payee”, so that if there is a loss covered under your policy that effects them, the policy will pay them directly, rather than you (e.g. you damage equipment rented from a rental house).
You can issue certificates to the following types of parties:
Municipalities/Cities for the purpose of granting permits for photography operations.
Lessors of premises Rented/Leased to the Insured for occupancy for photography  operations (except for long term leases).
Equipment rental companies, but only with respect to the maintenance, operation or use of the equipment by the Named Insured.
Under no circumstances should a certificate be issued with respect to a special effects company, pyrotechnics company, stunt coordinators or similar types of organizations involving hazardous activities without prior written approval from our office.