Do I have to sign a clean slogan?

If related companies are included, no signature is required.

The production of slogans should abide by laws and regulations and conform to the party's principles and policies. Some people don't want to use their brains in propaganda work. When they saw a good slogan in the newspaper, there was a new proverb on it. Immediately apply it to your own use. Whether it's appropriate or not. Whether there are adverse effects.

In order to be easy to understand, remember and spread, the language of slogans should be concise. Conciseness means that words are meaningful, and a few words contain rich information.