20 CFR § 404.1030 - Delivery and distribution or sale of newspapers, shopping news, and magazines.

(a) If you are under age 18. Work you do before you reach age 18 delivering or distributing newspapers or shopping news is excluded from employment. This does not include delivery or distribution to some point for further delivery or distribution by someone else. If you make house-to-house delivery or sale of newspapers or shopping news (including handbills and similar kinds of advertising material), your work is not covered while you are under age 18. Related work such as assembling newspapers is also excluded.

(b) If you are any age. No matter how old you are, work you do in connection with and at the time of the sale of newspapers or magazines to consumers is excluded from employment if there is an arrangement under which—

(1) You are to sell the newspapers or magazines at a fixed price; and

(2) Your pay is the difference between the fixed selling price and the amount you are charged for the newspapers or magazines (whether or not you are guaranteed a minimum amount of compensation or receive credit for unsold newspapers or magazines).

(c) If you are age 18 or older. If you have attained age 18, you are self-employed if you work under the arrangement described in paragraph (b) of this section. See § 404.1068(b).