I'm taking "35 tint all around" to include 35 to the left and right of the driver. Legally the limit there is 70.

https://www.dmv.nh.gov/vehicles-boats-or-titles/inspections-emissions/tinted-windows

Tinted Windows

What you need to know about tinted windows.

Pursuant to New Hampshire law, RSA 266:58-a, tinting to the windows to the left and right of the driver where they are allowed shall not be less than 70 percent light transmittance, and the light transmittance of after market tinted rear windows where they are allowed shall not be less than 35 percent. It shall be unlawful to sell or inspect any motor vehicle in this state which has after market tinting on the windshield, or to drive on any way any motor vehicle registered in this state which has after market tinting on the windshield.

Where after market tinting is applied to windows to the rear of the driver, outside rear view mirrors shall be required on both the left and right side of the vehicle for the use of the driver and a front seat passenger.

http://www.gencourt.state.nh.us/rsa/html/XXI/266/266-58-a.htm

TITLE XXI

MOTOR VEHICLES

CHAPTER 266

EQUIPMENT OF VEHICLES

Miscellaneous

Section 266:58-a

266:58-a Tinted Glass. –

I. It shall be unlawful to sell or inspect any motor vehicle in this state which has after market tinting on the windshield.

II. It shall be unlawful to install after market tinting on the windshield on any motor vehicle which is registered in this state.

III. It shall be unlawful to drive on any way any motor vehicle registered in this state which has after market tinting on the windshield. Where after market tinting is applied to windows to the rear of the driver, outside rear view mirrors shall be required on both the left and right side of the vehicle for the use of the driver and a front seat passenger. The light transmittance of after-market tinted windows to the left and right of the driver where they are allowed shall not be less than 70 percent, and the light transmittance of after-market tinted rear windows where they are allowed shall not be less than 35 percent, except that the light transmittance of after market tinted rear windows of multipurpose passenger vehicles, as defined in 49 C.F.R. section 571.3 and pickup trucks may be such percentage as is allowed by 49 C.F.R. section 571.205 with respect to pre-market tinted rear windows.

III-a. Persons who require for medical reasons after market tinting on the windshield may apply for a special permit pursuant to RSA 266:61-a, IX.

IV. The commissioner shall adopt rules under RSA 541-A relative to the administration and enforcement of this section.

V. Nothing in this section shall be construed to prohibit after market tinting of the windshield of a vehicle with a strip not wider than 6 inches located at the very top of the windshield, provided that the light transmittance of the strip shall not be less than 35 percent.

VI. Any natural person or any other person who violates the provisions of this section shall be guilty of a violation.

Source. 1989, 160:1. 1990, 44:1. 1997, 252:4, eff. Aug. 18, 1997. 2021, 185:2, eff. Oct. 9, 2021.