Indiana Window Tint Law 2026

The windshield is the first item in the (c) list, so the same 30% figure governs it as governs the front side glass — but only within the AS-1 band that (d) permits. FILM basis: the relative clause attaches to the material, not the window — "is tinted with material that has a total solar reflectance of visible light of more than twenty-five percent (25%) as measured on the nonfilm side and light transmittance of less than thirty percent (30%) in the visible light range". Indiana rates the product, so factory glazing is addressed separately in (a) rather than being folded into the measurement. RECORDED AMBIGUITY, not resolved by this dataset. Subsection (c) joins the reflectance and transmittance figures with "and". Read strictly, material offends only if it exceeds 25% reflectance AND falls below 30% transmittance, so a non-reflective 5% film would not violate (c) on its face. Indiana is universally published as a flat "30% VLT / 25% reflectance" state, which reads the conjunction as though it were "or". Both numbers are recorded here because both appear in the statute; how the conjunction is applied in practice is a question of Indiana enforcement and case law that was not researched, and no reading is asserted.

Indiana states the AS-1 line alone, with no inch fallback and no competing inch measure — contrast Oklahoma, Wyoming and Texas (AS-1 or five inches, whichever is closer to the top), New York (six inches, no AS-1 at all), and South Carolina (AS-1, with no windshield treatment permitted at all if the line is not visible).

Separately, IC 9-19-19-3(b) bars "a sign, poster, sunscreening material, or other nontransparent material upon the front windshield, side wings, or side or rear windows of the vehicle that obstructs the driver's clear view", while allowing such material "not larger than four (4) inches square" in the lower corner farthest from the driver.

The covered windows are enumerated, and the front side glass appears twice — as "side wing" and as "side window that is part of a front door". FILM basis: the relative clause attaches to the material, not the window — "is tinted with material that has a total solar reflectance of visible light of more than twenty-five percent (25%) as measured on the nonfilm side and light transmittance of less than thirty percent (30%) in the visible light range". Indiana rates the product, so factory glazing is addressed separately in (a) rather than being folded into the measurement. RECORDED AMBIGUITY, not resolved by this dataset. Subsection (c) joins the reflectance and transmittance figures with "and". Read strictly, material offends only if it exceeds 25% reflectance AND falls below 30% transmittance, so a non-reflective 5% film would not violate (c) on its face. Indiana is universally published as a flat "30% VLT / 25% reflectance" state, which reads the conjunction as though it were "or". Both numbers are recorded here because both appear in the statute; how the conjunction is applied in practice is a question of Indiana enforcement and case law that was not researched, and no reading is asserted.

The "rear back window" is the fourth enumerated item and carries the same figures as the front. Indiana attaches NO mirror condition to tinting it — contrast Texas, New York, Wyoming and South Carolina, all of which trade darker rear glass for outside mirrors. FILM basis: the relative clause attaches to the material, not the window — "is tinted with material that has a total solar reflectance of visible light of more than twenty-five percent (25%) as measured on the nonfilm side and light transmittance of less than thirty percent (30%) in the visible light range". Indiana rates the product, so factory glazing is addressed separately in (a) rather than being folded into the measurement. RECORDED AMBIGUITY, not resolved by this dataset. Subsection (c) joins the reflectance and transmittance figures with "and". Read strictly, material offends only if it exceeds 25% reflectance AND falls below 30% transmittance, so a non-reflective 5% film would not violate (c) on its face. Indiana is universally published as a flat "30% VLT / 25% reflectance" state, which reads the conjunction as though it were "or". Both numbers are recorded here because both appear in the statute; how the conjunction is applied in practice is a question of Indiana enforcement and case law that was not researched, and no reading is asserted.

Indiana is the only jurisdiction extracted so far that specifies WHERE the reflectance is measured — "as measured on the nonfilm side", i.e. from outside the glass rather than off the film surface. RECORDED AMBIGUITY, not resolved by this dataset. Subsection (c) joins the reflectance and transmittance figures with "and". Read strictly, material offends only if it exceeds 25% reflectance AND falls below 30% transmittance, so a non-reflective 5% film would not violate (c) on its face. Indiana is universally published as a flat "30% VLT / 25% reflectance" state, which reads the conjunction as though it were "or". Both numbers are recorded here because both appear in the statute; how the conjunction is applied in practice is a question of Indiana enforcement and case law that was not researched, and no reading is asserted.

The single (c) standard covers the rear back window along with the windshield and front side glass; Indiana states no separate rear figure. As with the transmittance rows, this does not reach a side window in a rear door. RECORDED AMBIGUITY, not resolved by this dataset. Subsection (c) joins the reflectance and transmittance figures with "and". Read strictly, material offends only if it exceeds 25% reflectance AND falls below 30% transmittance, so a non-reflective 5% film would not violate (c) on its face. Indiana is universally published as a flat "30% VLT / 25% reflectance" state, which reads the conjunction as though it were "or". Both numbers are recorded here because both appear in the statute; how the conjunction is applied in practice is a question of Indiana enforcement and case law that was not researched, and no reading is asserted.

Three features distinguish this from the other medical regimes in the dataset. The renewal cycle is ANNUAL, the shortest encountered (South Carolina requires renewal every two years; Wyoming's certificate lasts as long as the condition persists or until the vehicle is sold). No state agency is involved at all — there is no application and no issued permit, unlike Oklahoma, Wyoming, New York and the District. And it operates as an INSTALLER defence too: under (e), a tint shop does not violate the chapter "if this work is performed for a person who submits a physician's or optometrist's statement as described in subsection (b) to the person who is to perform the work." The prescribing professional must be licensed in Indiana, and the exemption extends to a vehicle in which the affected person is merely a habitual passenger.