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The thicker window films known as security window film are designed to perform under extreme conditions, and as such there are specific standard criteria these films should meet, such as American standards ANSI Z.97, CPSC 16 CFR 1201, Cat II (400 ft-lb), and the British Standards BS 6206 (Class A, B, C). The European Committee for Standardization offer the EN12600 standard Classification of Resistance of Glazing to Impact. Often, building codes dictate that a film must have a report verifying that it has met at least one of these standards. Solar window film is usually subject to less critical testing. However, standards are in place to maintain a level of quality in the industry. The ANSI Standards ASTM E903 and ASTM D1044-93 relate to the solar/UV transmission properties and abrasion resistance, respectively. The larger window film manufacturers use these standards to guarantee the quality of their raw materials and finished products.

Automobile window tinting reduces the visible light transmission (VLT) through car windows.

Window Film is a retrofit upgrade that is generally installed to flat glass in existing buildings. When installed to vehicles it is referred to as Window Tinting. This is due to the fact that the large majority of automotive window films are dark colored (tinted), whereas window films for commercial installation are typically clear. The two industries are complementary, and many installation companies offer both services.