It said 400 watts PEP for class A operator on 160, 80, 40, 30, 14, 17, 15,12 and 10 meters. For class B operator, only 50 watts on 10, 6, 2 meters and 70 cm.
Legal limit power may varies from country to country. The highest PEP limit power for amateur radio is 2.25 kW in Canada, 1.5 kW in the United States, 1.0 kW in Belgium, Switzerland and New Zealand, 750 W in Germany, 500 W in Italy, 400 W in Australia, India and the United Kingdom, and 150 W in Oman.
Definition of PEP, Peak envelope power (PEP) is the highest envelope power supplied to the antenna transmission line by a transmitter during any full undistorted RF cycle or series of complete radio frequency cycles. PEP is normally considered the occasional or continuously repeating crest of the modulation envelope under normal operating conditions.
PEP is equal to steady carrier power, or CW dot or dash average power, in a properly-formed CW transmission. PEP is also equal to average power in a steady FM, FSK, or RTTY transmission.
Read more about PEP and ERP. More explanation here, http://tymkrs.tumblr.com/post/10770399393/ham-radio-power-limits
Amateur radio operator should have self discipline and amateur radio itself is a self regulatory hobby. Do you follow your legal limit powers when having a 100 watts transceivers or 1kW linear amplifier at home?