Which of the following is an acceptable method to determine whether your station complies with FCC RF exposure regulations?

The FCC requires amateur radio operators to ensure their stations do not exceed maximum permissible exposure (MPE) limits for RF radiation. To give amateurs flexibility, the FCC permits several different methods to evaluate compliance. You can use the charts and formulas provided in FCC OET Bulletin 65, employ computer modeling software to simulate the antenna's radiation pattern, or physically measure the RF field strength using calibrated test equipment. Since all three methods are officially recognized and valid ways to determine if your station operates safely within the legal limits, the correct answer is that all these choices are correct.