There is a national application form.
Quoting from
http://www.scouting.org/boyscouts/resources/18-954/"World Conservation Award—This distinctive panda patch, No. 00140, is earned by Scouts who complete the Environmental Science, Citizenship in the World, and either Soil and Water Conservation or Fish and Wildlife Management merit badges, and complete the World Conservation Award application, No. 21-156."
However, national has not seen fit to include this form on their website. It is online in several other places, however. The most recent printing I found is a 1999 printing at
http://www.pinetreebsa.org/resources/fo ... nserBS.pdf... better yet is a fill-in form, so you can complete before printing for readability (a plus for those of us whose penmanship has been routinely compared to chicken scratch, and usually not in a favorable light!)