The mailing address for EO  Rulings and Agreements is:

Internal Revenue Service
TE/GE Stop 31A Team 105
P.O. Box 12192
Covington, KY  41012-0192

To file using a private delivery service, mail to:

Internal Revenue Service
Mail Stop 31A: Team 105
7940 Kentucky Drive
Florence, KY 41042

Use  these addresses to file Form 8940 and group exemption requests.