When a communication use is ancillary to, and authorized by BLM under, a grant or TUP for a linear use, or some other type of authorization (e.g., a mineral lease or sundry notice), BLM will determine the rent using the linear rent schedule (see § 2885.19 of this subpart) or rent scheme associated with the other authorization, and not the communication use rent schedule (see § 2806.30 of this chapter).