Advertising is considered to be "misleading" if it or its presentation in any way leads the targeted physical or legal people to make or be likely to make errors that could prejudice their economic behaviour or cause damage to a competitor.

Comparative advertising is only considered lawful when:

a) it is not misleading;

b) it compares goods or services that serve the same needs or share the same objectives;

c) it makes objective comparisons of one or more features that are essential, pertinent, verifiable and representative, including the price of these goods and services;

d) it does not generate confusion between different professionals in the market, between the advertising operator and a competitor or between brand names, commercial names, other distinctive symbols or goods/services of the same advertising operator or one of its competitors;

e) it does not discredit or denigrate the brand names, commercial names, other distinctive symbols, goods, services, activities or position of a competitor;

f) products including designation of origin must only refer to products with the proper designation.