Which journals does EI Compendex actually index — and what does it take to get in? EI journal selection criteria are more than a single threshold: they're a dynamic assessment of quality, professionalism and international reach. For engineering researchers choosing where to publish, and for editors hoping to earn EI coverage, understanding these criteria turns guesswork into strategy. In this guide, we break down what EI looks for, the engineering scope it covers, and how the list keeps changing.

What EI Looks at First: Quality and Publishing Standards

Academic quality is always the first consideration for EI's review team, and it shows up in concrete ways:

• The papers themselves. Are they original, with a genuine academic contribution? Is the research rigorous, the methodology sound, the conclusions reliable?

• Peer review. The quality and transparency of the review process is a core signal — double-blind review and strict editorial procedures are strong evidence of a serious journal.

• Publishing discipline. Regular publication, a stable editorial board, explicit publication-ethics statements, and adherence to international editorial standards (such as COPE expectations).

• Internationalisation. Often underrated, but consistently weighed: the regional diversity of the editorial board, the global spread of authors, and the breadth of citation reach.

Get these right, and the journal is already most of the way there.

The Coverage Scope: Engineering and Applied Science

EI stands for Engineering Index, and its coverage stays tightly anchored to engineering. The core fields include — but aren't limited to:

• Mechanical, electrical and electronic, chemical, civil, aerospace, and computer science and engineering

• Materials science and engineering, and other traditional and emerging engineering branches

Alongside these, applied sciences closely tied to engineering are also in scope: applied physics, applied mathematics, energy technology, environmental engineering and industrial manufacturing technology.

What's not  in scope matters just as much: purely theoretical or basic science, medicine, and the pure humanities and social sciences generally fall outside EI's engineering-oriented coverage. Knowing this boundary helps you pick the right target from the start.

How the List Is Evaluated and Updated

EI's journal list isn't carved in stone — it's a database that's continually refreshed. A dedicated review committee regularly evaluates both new applications and journals already in the list:

• New applications are assessed against the quality, publishing and internationalisation criteria above.

• Indexed journals are monitored through quantitative indicators such as citation analysis, which track academic influence over time.

• Removal is real. If an indexed journal starts publishing irregularly, its academic quality slips, or it drifts away from the engineering core, it can be removed from the list.

For journal teams, the lesson is simple: staying indexed is an ongoing commitment to standards, not a one-time badge.

What This Means for Authors and Editors

If your goal is EI exposure, put these into practice:

• Authors: before submitting, verify that the journal is in EI Compendex's current core list. Then weigh its reputation within your niche, its review timeline, and the article processing charge, if any.

• Editors: use the criteria as a self-audit checklist — review quality, publishing discipline, ethics statements, and internationalisation are all within your control.

In our experience supporting researchers and conference organisers, the people who check the venue before they commit are the ones whose work gets seen.

FAQs

What does it take for a journal to be indexed in EI Compendex?

There's no fixed threshold. EI evaluates academic quality, peer-review rigour, publishing discipline, ethics standards and internationalisation — dynamically, over time. A journal that excels across these dimensions stands the best chance.

Does EI index journals from all fields?

No. EI focuses on engineering and applied science. Purely theoretical research, medicine, and the pure humanities and social sciences generally fall outside its scope.

Can a journal be removed from EI?

Yes. Irregular publication, declining academic quality, or drifting away from engineering-focused content can lead to removal. Keeping high standards is what keeps a journal in the list.

How do I check if a journal is EI-indexed?

Verify through official channels — EI Compendex, accessed via Engineering Village. Also distinguish between EI-indexed journals and EI-indexed conference proceedings; they're separate coverage tracks.

Does EI use citation metrics in evaluation?

Yes, citation analysis is one of the quantitative indicators used to monitor a journal's academic influence — but it's part of a broader assessment, not the whole story.

Verify, Then Submit

The practical version: before you submit, verify the venue — and if you're working in engineering, there's no shortage of good stages for your work. Our platform keeps a live list of EI Indexed conferences, with organisers and deadlines you can check, and our news section tracks indexing updates as they happen. Browse the upcoming conferences to see the standard we're talking about. EI journal selection criteria exist to separate signal from noise — and knowing them is the difference between submitting blind and submitting smart.