Terms of use
What this site is
Which Field Software provides independent information, tools and data. Figures are researched, sourced inline, and dated; tools show their assumptions. Which Field Software is an independent site operated by Ellul Solutions Ltd. It is not affiliated with, endorsed by or connected to the EPA or any software vendor named here, and nothing on it is regulatory or contractual advice. We take no commission from any vendor and carry no paid placements. Capabilities, trials and terms change without notice: every statement carries the date we read it on the vendor's own page, and a trade named on a vendor's website is evidence of who they sell to rather than proof that the product models your work.
What this site is not
Nothing here is financial, legal, tax, medical or other regulated advice, and no tool output is a quote, an offer, or a recommendation to act. Results are estimates from the stated assumptions; confirm anything that matters with a qualified, authorised professional before acting. Where we introduce you to a provider, we act as an introducer only: we do not advise on, arrange, or recommend between providers, and we never handle client money.
Accuracy and liability
We work to keep every figure current (each table shows its last-updated date) but make no warranty that content is error-free. To the extent permitted by law, Ellul Solutions Ltd accepts no liability for loss arising from reliance on this site. Links to external sites are provided for sourcing; we are not responsible for their content.
Embedding and citation
You may cite this site's data with attribution (a link to the page cited) and may use the embeddable widget where offered, unmodified. Scraping that removes attribution, or republishing tables wholesale without a link, is not permitted.