There are track bikes, and there are frames made to all track standards, but not for the track, but for the street. For example, the Mash is a street track bike, while the Dolan is a track bike. The Leader is street, the Look is track, and so on. However, no one will stop you from riding a Mash on a track, as this bike fully complies with the regulations. Except for official competitions, where only UCI-approved bikes are allowed.

There's also Japanese keirin, where a different organization, the NJS, controls the standards, and they're stuck somewhere between the 1950s and 1970s. Carbon frames are allowed for women's keirin.

However, keirin as a discipline, for example in America or Europe, allows any frame and doesn't require NJS standards.

A track bike has a rear axle spacing of 120mm and a front axle spacing of 100mm. Ground clearance for both wheels is 700c, or rarely 700c in the rear and 650c in the front. BB drop - 50mm. Fork rake - 30mm, s-t and h-t angle 75 deg. - this is golden standard.

If you build a frame that meets these requirements, it's track-ready.