*Question T1D06:
[97.113(a)(4)] What, if any, are the restrictions concerning transmission of language that may be considered indecent or obscene?*  

*Correct Answer is  B: Any such language is prohibited*  

### AI Response: (may contain errors)  

The correct answer to the question about restrictions on the transmission of indecent or obscene language in amateur radio is:

**B: Any such language is prohibited.**

### Explanation of the Correct Answer:
- The Federal Communications Commission (FCC) prohibits the use of indecent or obscene language on all radio frequencies, including amateur radio. This is to ensure that the airwaves remain appropriate for all audiences and to maintain the integrity of the amateur radio service.

### Why the Other Choices are Incorrect:
- **A: The FCC maintains a list of words that are not permitted to be used on amateur frequencies.**
  - This is incorrect because the FCC does not maintain a specific list of prohibited words. Instead, the prohibition is based on the general definition of indecency and obscenity, which can vary based on context and community standards.

- **C: The ITU maintains a list of words that are not permitted to be used on amateur frequencies.**
  - This is incorrect as well. The International Telecommunication Union (ITU) does not regulate specific language used in amateur radio. The ITU sets international standards for radio communication but does not enforce language restrictions.

- **D: There is no such prohibition.**
  - This is incorrect because there is indeed a prohibition against indecent or obscene language on amateur frequencies, as established by the FCC.

### Summary:
- The prohibition against indecent or obscene language is a general rule enforced by the FCC, not based on a specific list of words. Understanding this helps ensure compliance with regulations while operating in the amateur radio service.