National Guard Protective Zone Act

Creates a federal offense for knowingly entering a posted protective zone around National Guard members during deployments. A "posted protective zone" would be any area within 15 feet of a Guard member that is marked by a verbal warning, visible signage, barricade tape, or other reasonable means. Entering or remaining in that zone with intent to impede, intimidate, or interfere with a Guard member's duties would be punishable by a fine, up to 1 year in prison, or both. If the offender makes physical contact, throws an object at, or spits on the Guard member the maximum penalty would be up to 5 years. The bill preserves protected First Amendment activity conducted outside a posted protective zone and adds new Section 1390 to chapter 67 of Title 18 of the U.S. Code.