http://www.cleverscampcamp.com/camping-el-yunque/

How long can I camp in the El Yunque rainforest?
There is a 14 day camping permit for El Yunque rainforest. How often is it renewable and is there a waiting period between renewals?
I suggest you contact the Parques Nacionales Office or National Parks office at www.parquesnacionalespr.com 787 888 1880 or 1810 or call them at this number between 9 am and 5pm for to speak with personal at the Forest.Postal Address:
USDA Forest Service
El Yunque National Forest
HC-01, Box 13490
Rio Grande, PR 00745-9625
Attn: Myrna Tirado
This is the mailing address also.
Hope this helped you out.
Enjoy your trip. Welcome. Difrutes tu estadia y Bienvenida.
Puerto Rico – El Yunque