Public trust and professional integrity are safeguarded through strict regulations governing the practice of various professions. These laws not only define the scope of each profession but also impose penalties on individuals who operate beyond their authorized expertise or practice without proper credentials. Such provisions ensure that only qualified professionals render services, protecting the public from unqualified practitioners.

For real estate practitioners, the Real Estate Service Act (RA 9646) serves as the primary regulatory framework. Individuals who practice real estate services without a valid license or perform tasks outside their professional scope face severe penalties. These include fines ranging from ₱100,000 to ₱5,000,000 and/or imprisonment of two to four years. This law underscores the importance of licensing in real estate services, ensuring that only accredited professionals appraise properties and guide clients through transactions.

In the field of agriculture and engineering, the Agricultural and Biosystems Engineering Act (RA 10915) regulates the work of agricultural and biosystems engineers (ABEs). Unauthorized practice under this law can lead to penalties of ₱100,000 to ₱500,000 or imprisonment of six months to five years, or both. This highlights the critical role ABEs play in ensuring the safe and efficient development of agricultural systems and infrastructure.

Similarly, the Philippine Mechanical Engineering Act (RA 8495) protects the mechanical engineering profession from unauthorized practice. Violators face fines between ₱50,000 and ₱200,000 or imprisonment of six months to six years, or both. Mechanical engineers handle critical tasks such as designing industrial machinery and evaluating technical systems, which require specialized skills.

For architects, the Architecture Act (RA 9266) prescribes fines ranging from ₱100,000 to ₱5,000,000 or imprisonment of six months to six years for practicing without proper licensure or exceeding the defined scope. The same is true for electrical engineers under the Electrical Engineering Law (RA 7920), which penalizes violations with fines of ₱10,000 to ₱50,000 or imprisonment of six months to five years or both.

These penal provisions serve as a warning to professionals and non-professionals alike. Practicing outside the bounds of expertise and licensure can have serious legal consequences. The overlapping and specialized nature of modern industries—such as real estate, engineering, and agriculture—demands that professionals adhere strictly to their defined roles. Collaboration among experts in their respective fields ensures comprehensive and credible outcomes without compromising public welfare.

By staying within the bounds of their profession, licensed practitioners not only avoid hefty fines and imprisonment but also contribute to upholding the credibility and standards of their industry. For the public, these laws provide assurance that they are engaging with qualified professionals, fostering trust and confidence in professional services across sectors.