It executes Council decisions and ensures that EC rules are correctly observed.
It said it had to advertise its contracts throughout Europe under new EC rules which come into force in 1993.
The EC rules give EC companies the same rights as individuals.
The Court concluded that the law was consistent with the EC rules on the right of establishment.
They are also eligible under EC rules for any public subsidies available to companies incorporated under the law of the host state.
The damage was discovered because EC rules forced the water company to monitor more closely the quality of its water.
Water companies advised not to report breaches of EC rules on pesticides in drinking water.
The Commission has reminded Rome that EC rules will have to be respected when a decision is made.
How strictly will EC rules on subsidies, product safety and the environment be applied to East German products?
EC rules ban subsidies which are likely to distort competition.