Which of the following is required on a yellow label?

The requirement for a yellow label in the context of Texas fire alarm rules and statutes stipulates that it must include essential company information to ensure accountability and traceability. This includes the firm's name, address, telephone number, and registration number, which are critical for verifying that the installation or service has been performed by a licensed and registered entity. Having this information readily available on the label helps facilitate communication and follow-up, particularly in case of emergencies or inspections.

The other options, while potentially useful in various circumstances, do not fulfill the specific informational requirements mandated for a yellow label. For instance, labor cost breakdowns and detailed inspection reports are not typically required to be displayed prominently on a label. Emergency contact information may be important but is governed by different regulatory requirements and does not replace the need for the firm's identification details.