7.1 Building Regulations Part P & Competent Person Schemes

Introduction to Building Regulations Part P

In England and Wales, the Building Regulations are statutory instruments that seek to ensure policies are properly applied in the construction of buildings. They cover health, safety, welfare, convenience, and energy efficiency. For electrical installations in domestic dwellings, the critical section is Part P: Electrical Safety.

Part P was introduced into the Building Regulations on 1 January 2005. Its primary objective is to keep people safe from electrical hazards in homes. The fundamental requirement of Part P states that anyone carrying out electrical installation work in a home must ensure that the work is designed and installed to protect people from fire and electric shock.

Part P applies to electrical installations operating at low voltage (typically 230V single-phase) or extra-low voltage within domestic premises, which includes:

• Dwelling houses and flats.
• Dwellings and business premises that have a common supply (e.g., shops above with flats).
• Common access areas in blocks of flats, such as corridors and staircases.
• Shared amenities of blocks of flats, such as laundries or gymnasiums.
• Outbuildings such as sheds, detached garages, and greenhouses.

It is essential to understand that Part P does not apply to commercial or industrial premises unless they share a supply with a domestic dwelling as outlined above. However, the principles of electrical safety and adherence to BS 7671 (The IET Wiring Regulations) apply universally across all types of installations.

Notifiable vs. Non-Notifiable Work

A central concept in understanding Part P is the distinction between 'notifiable' and 'non-notifiable' electrical work. The regulations dictate that certain higher-risk electrical work must be notified to the local authority Building Control body before the work begins, unless it is being carried out by an installer registered with a Competent Person Scheme.

Notifiable Work

In England, the scope of notifiable work was reduced in 2013 to focus on the highest risk areas. Notifiable work currently includes:

1. Installation of a new consumer unit or fuse box: Replacing a consumer unit is a major alteration that affects the safety of the entire installation.
2. Installation of a new circuit: Whether it is a completely new circuit from the consumer unit for an extension, or a new circuit for an electric shower.
3. Any addition or alteration to an existing circuit in a 'special location': The most common special location is a room containing a bath or shower. In bathrooms, work within specific 'zones' around the bath or shower is strictly controlled.

In Wales, the rules are slightly stricter and encompass a wider range of notifiable tasks, including some work in kitchens and outdoors, which used to be the case in England prior to the 2013 amendments. As an electrician, you must be aware of the specific geographic variations in the Building Regulations depending on where you are working.

Non-Notifiable Work

Most other electrical work in a domestic setting is classified as non-notifiable. This includes:

• Adding lighting points or socket-outlets to an existing circuit (as long as it is not in a special location).
• Replacing accessories such as socket-outlets, light switches, and ceiling roses.
• Replacing a damaged cable for a single circuit on a like-for-like basis.
• Maintenance and repair work.

However, a crucial point often misunderstood by DIY enthusiasts and inexperienced tradespeople is that non-notifiable does not mean unregulated. All electrical work, regardless of whether it is notifiable or not, must still comply with Part P of the Building Regulations and BS 7671. It must be safe, properly tested, and a Minor Electrical Installation Works Certificate (MEIWC) should be issued to the customer for any additions or alterations.

Competent Person Schemes (CPS)

To streamline the notification process and ensure high standards of electrical safety, the government authorized various Competent Person Schemes (CPS). Organizations such as NICEIC, NAPIT, and ELECSA (which is now integrated into the NICEIC brand) operate these schemes.

Benefits of Registration

Electricians who are registered with a CPS are classified as 'Competent Persons'. The primary advantage of this status is the ability to self-certify that their electrical work complies with the Building Regulations.

When a registered electrician completes notifiable work, they do not need to inform Building Control before starting. Instead, upon completion, they notify their scheme provider. The scheme provider then updates the local authority Building Control and issues a Building Regulations Compliance Certificate directly to the homeowner. This process saves the homeowner significant time and money, as applying directly to Building Control involves paying notification fees and arranging site visits from a building inspector.

Requirements for Registration

To join a Competent Person Scheme, an electrician must demonstrate their competence. This typically involves:

• Holding relevant electrical qualifications (such as NVQ Level 3 in Electrical Installation, 18th Edition BS 7671, and Inspection & Testing qualifications).
• Having adequate public liability insurance (usually a minimum of £2 million).
• Having an up-to-date calibration certificate for their test equipment.
• Undergoing an annual on-site assessment by the scheme provider to review their technical work, knowledge, and business processes.

Building Control Notification and Enforcement

If an unregistered person (such as a DIYer or an unregistered electrician) carries out notifiable work, they must submit a building notice to the local authority Building Control department before starting the work and pay the appropriate fee. Building Control will then inspect the work at various stages and, upon satisfactory completion and testing, issue a completion certificate.

Alternatively, a registered third-party certifier can inspect and test the work, although this route is less common.

Penalties for Non-Compliance

Failure to comply with Part P is a criminal offense. The local authority has the power to serve an enforcement notice requiring the alteration or removal of work that does not comply with the Building Regulations. Furthermore, individuals can be prosecuted in the Magistrates' Court and face unlimited fines.

Beyond legal penalties, non-compliant work can cause significant issues when a homeowner attempts to sell their property. Buyers' solicitors routinely ask for Building Regulations Compliance Certificates for any electrical work carried out since 2005. Missing certificates can delay sales, force sellers to pay for retrospective inspection and testing (which can be costly and disruptive), or even cause sales to fall through entirely. Therefore, professional electricians play a critical role in maintaining safety and ensuring administrative compliance for their clients.