which is required by vs which is required to

Both phrases are correct, but they are used in different contexts. 'Which is required by' is used when referring to a specific requirement or rule imposed by someone or something, while 'which is required to' is used when indicating the action or task that needs to be done. It's important to choose the correct preposition based on the context of the sentence.

Last updated: March 24, 2024 • 2997 views

This phrase is correct and commonly used in English when referring to a specific requirement or rule imposed by someone or something.

"which is required by"

This phrase is used to indicate the entity or source that mandates a certain requirement. For example, 'The report, which is required by the manager, must be submitted by Friday.'

Examples:

The dress code, which is required by the company, must be followed at all times.
The safety measures, which are required by law, must be implemented in the workplace.
The additional training, which is required by the certification board, must be completed within six months.

Show examples from the web [+]

Is the Commission aware of the risks to car manufacturers and car owners associated with soot measurement, which is required by Directive 92/55/EEC (amended in 1996, 96/96/EG, and in 1999, 1999/52/EC)?
Is the Commission aware of the risks to car manufacturers and car owners associated with soot measurement, which is required by Directive 92/55/EEC OJ L 225, 10.8.1992, p.
Article 41(4): a simplified authorisation procedure is only possible in the case of regulatory testing which is required by law.
It is particularly alarming that the State Inspectors Corps, which is required by European legislation, currently comprises four individuals, only two of them on active service, to deal with all air traffic operations on Spanish territory.
The EDPS would like to highlight the doubtful legal ground for the processing, which is required by Directive 95/46/EC, and the obligation contained in Directive 2002/58/EC to discard log files.
The undertaking must make available to the public as soon as possible its most recent annual accounts and its last annual report the publication of which is required by national law.
1. The undertaking must make available to the public as soon as possible its most recent annual accounts and its last annual report the publication of which is required by national law.
In addition, every candidate for certification of competency under this regulation for service on a ship which is required by the SOLAS 74, as amended, to have a radio installation shall:
The Commission understands, also from the text of the mentioned decisions of the regional and national administrative courts that such a decision by the region of Sardinia was taken without the opinion of the national Institute for Environmental Protection and Research, which is required by national law.
In addition, every candidate for certification under this regulation for service on a ship which is required by the SOLAS 74, as amended, to have a radio installation shall:
Let me end with a warning, however: the Community's infrastructure policy, Commissioner, its trans-European networks policy, is not contributing to the strengthening of economic and social cohesion which is required by the Treaty.
These safeguards are to be found, firstly, in the description of the minimum information to be included in the environmental impact assessment report which is required by the EIA Directive and, secondly, in the consultations with the competent environmental authorities and the public.
It is simply an intermediary which is required by law to take action, but whose activities are restricted to undertaking expenditure on behalf of the co-owners and apportioning the expenses on the basis of accounts rendered.

Alternatives:

which is mandated by
which is stipulated by
which is enforced by
which is regulated by
which is prescribed by

This phrase is correct and commonly used in English when indicating the action or task that needs to be done.

"which is required to"

This phrase is used to specify the action or task that is necessary or mandatory. For example, 'The employee, which is required to attend the meeting, arrived late.'

Examples:

The student, which is required to complete the assignment, asked for an extension.
The driver, which is required to wear a seatbelt, was fined for not doing so.
The software, which is required to be updated regularly, experienced performance issues.

Show examples from the web [+]

Securities sold which are to be repurchased under repurchase agreements shall be treated by the reporting entity, which is required to repurchase them, as if the assets in question were still part of the portfolio from which they were sold.
The ECB, which is required to retain the original Agreements, shall send a certified copy of each of the original Agreements in English, French and German to each euro area and non-euro area NCB.
Table 3 in appendix 5 shows the information which is required to be included if the engine is so equipped, senses or calculates the information.
On every trailer which is required to be fitted with a service braking system, parking braking shall be ensured even when the trailer is separated from the towing vehicle.
Table 4 in Appendix 5 to this annex shows the information which is required to be included if the engine is so equipped, senses or calculates the information [7].
Market participants referred to in paragraph 1 of this Article shall submit the registration form to the national regulatory authority prior to entering into a transaction which is required to be reported to the Agency in accordance with Article 8(1).
information which is required to be made public in accordance with Regulations (EC) No 714/2009 and (EC) No 715/2009, including guidelines and network codes adopted pursuant to those Regulations;
The ECB, which is required to retain the original Agreement, shall send a certified copy thereof to each euro area and non-euro area NCB.
Securities sold which are to be repurchased under repurchase agreements shall be treated by the ECB, which is required to repurchase them, as if the assets in question were still part of the portfolio from which they were sold.
The RMPP, like other UK occupational pension schemes, is a funded scheme which is required to hold assets in respect of its liabilities.
We must avoid duplication and the information communicated must be that which is required to achieve the objectives set.
allowing for the greater effort which is required to complete the internal market;
The downloaded license key which is required to run this piece of software is not valid or could not be installed correctly. See the details for more information.
- allowing for the greater effort which is required to complete the internal market;
Thus the Commission, which is required to adopt the frameworks, would not be in a position to emphasise some or other aspect in the operational programmes.
The Council has made a number of changes to the original provisions regarding the quality management system which is required to be set up (Articles 5 and 6).
The Community shall take adequate steps to facilitate speedy action, which is required to meet the immediate needs for which emergency assistance is needed.
A certified copy of the original in each language shall be sent to each central bank by the ECB, which is required to retain the originals.
Now it is up to the Member States to initiate the action which is required to save the fishing industry in Europe.
However, this cannot be sustained without a drastic reduction in the budget deficit, which is required to prevent us from ending up in the same situation as Greece.

Alternatives:

which needs to
which must
which has to
which is obligated to
which is compelled to

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which is required by vs which is required to