Which form of advertisement is not allowed?

• A. TV/Radio commercials
• B. Brochures
• C. Listing in telephone directories
• D. Business cards

Answer: (A)

Advertising rules for professionals often restrict mass-media outreach because broadcast formats can quickly amplify claims and reach a broad audience, increasing the risk of misrepresentation or exaggeration about capabilities. In chemical engineering practice, the emphasis is on accuracy, verified qualifications, and responsible communication to protect public safety and maintain professional standards. TV and radio ads tend to be sensational and harder to verify, which is why they’re typically not allowed in strict professional-advertising frameworks.

More limited, controlled formats are permitted because they convey essential, verifiable information without hype. Brochures can describe services and qualifications with careful wording, including necessary disclaimers. Listings in telephone directories and business cards provide straightforward contact information and credentials in a concise, non-promotional way. These formats support informed decision-making by potential clients or employers and align with ethical guidelines that favor transparency over persuasion.

So, the form not allowed is television and radio advertisements, while brochures, directory listings, and business cards are considered acceptable methods of professional advertising within these rules.