# Core Contributors: Expenses

**Open Collective will cover the following expenses:**

* Travel, accommodation & meals during Sprints
* Travel to conferences (pre-validation required)
* Personal development workshop/classes (pre-validation required)

**Core contributors are responsible for:**

* Healthcare
* Office, Hardware / Internet
* Commute / Lunches

**Core contributors (& part time contributors) should submit their invoices to the corresponding collective:**

* opencollective.com/opencollective
* opencollective.com/design
* opencollective.com/engineering