<sub>This is in the spirit of the [What is a Word/Phrase™][1] series started by [JLee][2] with a special brand of [Phrase™][3] and [Word™][4] puzzles.</sub>

<hr>

If a word conforms to a special rule, I call it a **Limited Word™**.  
Use the examples below to find the rule.  

$$
% set Title text. (spaces around the text ARE important; do not remove.)
% increase Pad value only if your entries are longer than the title bar.
%
\def\Pad{\P{0.0}}  \def\Title{\textbf{ Limited }}
%
\def\S#1#2{\Space{#1}{20px}{#2px}}\def\P#1{\V{#1em}}\def\V#1{\S{#1}{9}}
\def\T{\Title\textbf{Words}^{\;\!™}\Pad}\def\NT{\Pad\textbf{Not}\T\ }
\smash{\lower{29px}\bbox[lightblue]{\phantom{\rlap{rubio.2019.05.15}\S{6px}{0}
\begin{array}{cc}\Pad\T&\NT\\\end{array}}}}\atop\def\V#1{\S{#1}{5}}
\begin{array}{|c|c|}\hline\Pad\T&\NT\\\hline
%
\text{  TRAFFIC}&\text{       DRIVING}\\ \hline
\text{  MAILMAN}&\text{       RANGER}\\ \hline
\text{  BUFFALO}&\text{       OSTRICH}\\ \hline
\text{  COMMAND}&\text{       CONTROL}\\ \hline
\text{  TRY}&\text{       FAIL}\\ \hline
\text{  HANDLES}&\text{       CLOCKS}\\ \hline
\text{  DURABLE}&\text{       COMPACT}\\ \hline
\text{  CLIMATE}&\text{       WEATHER}\\ \hline
\text{  CAMPING}&\text{       HUNTING}\\ \hline
\text{  CHINESE}&\text{       ENGLISH}\\ \hline
\hline
\end{array}$$

CSV version:

    Limited Words™, Not Limited Words™
    TRAFFIC,      DRIVING
    MAILMAN,      RANGER
    BUFFALO,      OSTRICH
    COMMAND,      CONTROL
    TRY,          FAIL
    HANDLES,      CLOCKS
    DURABLE,      COMPACT
    CLIMATE,      WEATHER
    CAMPING,      HUNTING
    CHINESE,      ENGLISH

**What is the special rule these words conform to?**

  [1]: https://puzzling.stackexchange.com/search?q=%22what+is+a%22+word+is%3Aquestion
  [2]: https://puzzling.stackexchange.com/users/463
  [3]: https://puzzling.stackexchange.com/search?q=%22Phrase%22%20user%3A463%20is%3Aquestion
  [4]: https://puzzling.stackexchange.com/search?q=%22What+is+%22+%22Word%22+-missing+user%3A463+is%3Aquestion

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### Notes:

* This puzzle can only be solved if the letters are in **uppercase**.
* This puzzle may involve some [tag:computer-science] knowledge.

*Edit: Baker was changed to ranger, drawers was changed to clocks. All four of these words are **not** "Limited Words™".*