Attending to pertinent rules, regulations, and procedures (international, national, local, community, institutional, etc.) is an important aspect of planning and carrying out research in line with the guiding ethical principles of beneficence, justice, and respect for persons.
Linguistic research may be subject to the regulations on work with human subjects. In addition, linguists may be subject to institutional and/or local policies that go above and beyond these regulations. In planning their research linguists have an obligation to inform themselves about these regulations and policies.
Just a minor mechanical thing: The first “the” in the final paragraph should be dropped–there are lots of different regulatory frameworks for human subjects research, not all of which will apply to any particular research project.