你好，OPT延期新政的确规定了延期期间是不能做无薪资工作的。
详细的规定如下：
Moreover, the final rule requires that the terms and conditions of an employer's STEM practical training opportunity—including duties, hours and compensation—be commensurate with those provided to the employer's similarly situated U.S. workers.
Along the same lines, work duties must be designed to assist the student with continued learning and satisfy existing ICE guidelines for work hours when participating in post-completion OPT. To help gauge compliance, employers are required to provide DHS with student compensation rate information, which will help the Department monitor whether STEM OPT students are being compensated fairly.
您也可以参考新政全文：
https://www.federalregister.gov/articles/2016/03/11/2016-04828/improving-and-expanding-training-opportunities-for-f-1-nonimmigrant-students-with-stem-degrees-and
