Final answer:
Tanya should include sanction guidelines in her attendance policy, specifying the actions that will be taken for excessive absenteeism, such as warnings or termination.
Step-by-step explanation:
Tanya, as the new human resources manager of a manufacturing company facing absenteeism issues, should include sanction guidelines in the policy she is writing. These guidelines will outline the actions to be taken in response to high absenteeism rates, ensuring that employees are aware of the consequences of their actions. These could include verbal warnings, written warnings, suspension, or even termination of employment based on the severity and frequency of absenteeism. To complement sanction guidelines, Tanya may also consider implementing a reward system that incentivizes attendance and punctuality, effectively balancing positive and negative reinforcements.