The law says:
In Norway it is illegal to purchase sex, but legal to sell it (The Penal Code Section 316). Purchasing sex from persons between the ages 16 to 18 results in an aggravated penalty (The Penal Code Section 309). Purchasing sex from, or trading sex with, a person under the age of 16 is, according to Norwegian law, sexual assault against a child (The Penal Code, Sections 302, 303, 304). Purchasing sex from a person under the age of 14 is considered rape of a child (The Penal Code, Sections 299, 300, 301).