Final answer:
In uniform, items like water pipes, pipelines, conduits, hula hoop rings, buckets, bottles, bags, and some toiletry containers are not authorized as hair-holding devices because they are impractical and unsafe.
Step-by-step explanation:
Examples of hair-holding devices that are not authorized in uniform would include any items that are not designed for securing hair neatly and that could present a safety hazard or breach of uniform regulations. Therefore, unconventional items like water pipes, gas & fire pipelines, electrical & communications conduit, hula hoop rings, five gallon buckets, and containers such as milk, juice and water bottles; grocery bags, and bottles used for shampoo/toiletries would not be permissible as hair-holding devices. When in uniform, individuals are typically required to tie back long hair, and to maintain safety and professionalism, they must avoid using hair accessories that are impractical or that fail to secure the hair adequately, such as those items mentioned. It is important to adhere to the dress code or uniform regulations which may also state to wear closed toe shoes with flat heels and shirts with no hanging sleeves, hoods, or drawstrings for safety purposes.