Create a written policy stating your intention to be an inclusive organization
Clearly define what inclusivity means for your organization.
Discuss the policy with all the leaders within your organization so they understand what is being done.
Make sure you have buy-in from every leader at every level.
Distribute the written policy to everyone that represents the organization, especially paid employees and volunteers.
Actually implement the policy.
Keep track of how it is going. Make adjustments, educate, be patient.
Make sure to include the groups mentioned in the policy. Representation matters.
Look for ability and cultivate it.