The membership agreement must be signed by someone who is legally empowered to commit an organization to its terms. There are four membership agreements:
- Not-For-Profit Membership Agreement 
- For-Profit Membership Agreement 
- Government Entity Membership Agreement 
- LDC Online Membership Agreement 
Forward signed membership agreements to LDC by email , fax (+1.215.573.2175) or mail . Send two original copies of the membership agreement by mail if a co-signed copy of the agreement is required.