- Article 3a - Removal of trade barriers, tariffs and quotas between member states.
- Article 3b - Adoption of a 'Common Commercial Policy'. This in essence is a tariff on imports from all non-members. This common policy with respect to tariffs made the EEC a 'customs union'.
- Article 3c - Integration of capital and labour markets, which meant there should be a freedom of movement of services.
- Article 3g - Ensures undistorted competition in member states. This meant subsidies from governments to national firms that distorted trade were banned, there had to be a common competition policy, a harmonizing of national laws that affected market operation and harmonization of some national taxes.
- As well as these, there was a call for mechanisms to coordinate member state macroeconomic policy in case of Balance of Payments crises and they all agreed on goals and principles for agriculture (The Common Agricultural Policy came into effect in 1962).