• Validity of Certificate - After the date of issuance, TEC Certification remains valid for 10 years and after expiry of certificate renewal certification will also be granted for 10 years.
• Renewal of Certificate - Online applications for renewal must be submitted at least one month before the existing certificate's validity period expires, together with the renewal fee.

If neither the ERs that apply to the equipment nor the model of the equipment change, the certificate must be updated.

A new certificate with a ten-year validity period must be issued and must bear the old certificate number.

If the need arises to verify that the equipment complies with the ERs, TEC may request that re-testing or re-evaluation of certified telecom equipment be performed and charge the appropriate price.

• Indian OEM - For TEC-related duties, any executive of the Indian OEM or brand owner must be made an Authorized Signatory by a letter from his company.
• Foreign OEM - An Indian business entity must be chosen by the foreign manufacturer to serve as its authorized Indian representative and signatory (AIR). Any executive of an Indian-based corporation has the potential to become an AIR.
• Note: If EVTL INDIA does not have any other arrangement. it may act as the Foreign OEM's AIR.

TEC labelling specifications include

• Prominently displayed on the equipment's body is the logo.
• Indication in the technical paper of equipment that it complies with ERs.
• Only for mobile devices and tablets is an e-label of certification applicable.
• The TEC logo's size can be changed while keeping its aspect ratio.
• Note: For the first six months, TEC has exempted product labelling.

Without further testing - The certificate must be modified without testing if changes or modifications made to the certified equipment do not affect compliance with authorized Essential Requirements. Such alterations include, for instance:

• A change in the equipment's size, shape color, or enclosure led to a change in the model number or name
• Modification of the model number without changing the hardware architecture.
• Changes in the ownership, organization, or address of the business that holds the equipment certificate.
• Inclusion of a new Associated Model's name that was covered by previously filed BoM but was not initially present on the current certificate.

A new certificate reflecting the changes will be issued by TEC following the assessment of the application.

Using retests - The certified equipment will need to be recertified if any additional changes are made that have an impact on how well it complies with the essential requirements that have been authorized. The following are only a few examples of such adjustments.

• New network interface card addition
• Modification of the current network interface card
• Adding a new associated model that was neither initially listed on the certificate in use nor covered by the certified model's BOM.
• Adding a new chassis, interface module, or item to the group of equipment that has already received certification.
• Only once a new certificate has been given by TEC may the changed equipment be sold or utilized.

A certificate modification is not always necessary when there has been a software change, such as a major revision, minor revision, patch, bug fix, or update unless the change has rendered the equipment incompatible with ERs with which it was previously compliant. If a certificate adjustment is required, the OEM is in charge of verifying the information and submitting the application.

Contraventions and NC - If TEC learns that equipment that has not been certified, equipment that has been certified but has been modified without authorization, or equipment whose certification has expired is being sold, used, or intended for sale, the equipment will need to undergo the mandatory certification within 128 days of the date of the notice of violation.

If certification for such a telegraph is not obtained within the required timeframe, TEC may order to seize and destroy all such equipment.