Chapter 4 · Range Equipment · p.26
4.4Frangible and Synthetic Targets
4.4.1p.26
Frangible targets, such as clay pigeons or tiles, are not authorized targets for USPSA Competition matches.
4.4.2p.26
Synthetic falling plate targets (e.g. “self-sealing” targets etc.), sometimes used by indoor ranges, may be used at Level I matches provided they comply with the sizes specified in Appendix B3.